Die Forschungsgruppe Umweltökonomie (EnvEco) wendet ökonomische Theorien und Methoden an, um die wirtschaftlichen Aspekte von Umweltproblemen, insbesondere im Zusammenhang mit Wasser, und mögliche Lösungen zu untersuchen. Der Forschungsschwerpunkt der Gruppe liegt auf der ökonomischen Bewertung von Ökosystemleistungen. Wir verwenden sowohl umfragebasierte, "Stated-Preference" Methoden, als auch "Revealed-Preference" Methoden an, sowie natürliche Experimente, die sich auf tatsächliche Marktdaten stützen, um die Zahlungsbereitschaft der betroffenen Bevölkerung für die Lösung eines Umweltproblems zu schätzen. In jüngerer Zeit haben wir auch damit begonnen, plurale Bewertungsansätze für die Bewertung von Ökosystemleistungen und Beiträgen der Natur für den Menschen (engl. Nature’s Contributions to People) zu erforschen. Für die Datenanalyse wenden wir modernste ökonometrische Modellierungstechniken an. Generell zielt unsere Forschung darauf ab, (1) methodische Aspekte ökonomischer Bewertungsmethoden voranzutreiben und (2) umweltpolitische Entscheidungsprozesse über die wirtschaftliche Effizienz von Optionen zu informieren, z. B. durch eine Kosten-Nutzen- oder Kostenwirksamkeitsanalyse.
Das Forschungsprojekt konzentriert sich auf die Bewirtschaftung von Wassereinzugsgebieten in schweizer Berggebieten und zielt darauf ab, die Resilienz von Bergökosystemen zu erhöhen.
In diesem Projekt geht es darum die private Bereitstellung eines globalen öffentlichen Gutes - kohlenstoffneutrale Produkte und Dienstleistungen - im Zusammenhang mit der Bekämpfung des Klimawandels zu untersuchen.
Eines der Hauptziele diese Projektes besteht darin, ein neues theoretisches Konzept zu entwickeln, das die Gründe für Präferenz Unsicherheiten in Choice Experiment Umfragen erklären kann
Das Projekt führt eine Kostenwirksamkeitsanalyse von verschiedenen Massnahmen zur Reduktion von chemischer Wasserverunreinigung im Mönchaltorfer Aa Flussbecken (ZH) durch.
Das Ziel dieser Studie ist es, anhand des Schweizer Immobilienmarktes den Wert von Hausstrukturen, Nachbarschafts- sowie Umweltbezogenen Charakteristiken zu beurteilen.
Das Hauptziel dieses Projekts ist es aufzuzeigen, wie ökonomische Bewertungen von verschiedenen Ökosystemdienstleistungen räumlich in der Schweiz verteilt sind.
Dieses Projekt geht die aktuellen Forschungslücken bei der Integration von Wald-, Ökohydrologie- und Wirtschaftswissenschaften an, im Hinblick auf die Verbesserung des Entscheidungsprozesses.
Lieberherr, E., Dölker, J., Salomon, H., Schick, V., Logar, I., Bugmann, H., … Hoffmann, S. (2025). Science integration and a participatory scenario process. An inter- and transdisciplinary study from the Alps. GAIA: Ecological Perspectives for Science and Society, 34(1), 35-41. doi:10.14512/gaia.34.1.4, Institutional Repository
Highly engineered Alpine watersheds and forests face growing risks, requiring shifts in management and research. We use science integration and a participatory scenario process to integrate disciplines and co-create knowledge with stakeholders. We thus develop pathways for rethinking future management, aiming for higher resilience of Alpine ecosystems and delivering greater societal value than current systems.
Given highly engineered Alpine ecosystems with monocultures and channelized streams, this project proposes radical changes to enable increased ecosystem resilience and societal wellbeing. We propose to rethink 1. management by including ecological and socio-economic aspects and 2. research by integrating natural, engineering, and social sciences. In this inter- and transdisciplinary project, we develop qualitative scenarios as storylines for future Alpine watershed and forest management. These scenarios serve as parameters for, on the one hand, the biophysical modelling of ecological quality (biodiversity, ecosystem function, ecological integrity) in Swiss case study regions. On the other, we assess residents’ preferences for the scenarios in relation to Nature’s Contributions to People and aspects of justice. We thus use science integration and a participatory scenario process to enable integration across disciplines as well as co-create knowledge with stakeholders throughout the research process. While this approach facilitates working across disciplinary boundaries and includes stakeholders from the onset, it also comes with challenges: finding a common language across disciplines and engaging meaningfully with stakeholders takes time and simultaneously does not cater to the traditional metrics in academia.
Zhang, J., Salomon, H., Huber, M. N., Bugmann, H., Dölker, J. E., König, L., … Hoffmann, S. (2025). Developing a conceptual framework for interdisciplinary communication, collaboration, and integration: a structured approach. Ambio, 54, 2118-2134. doi:10.1007/s13280-025-02210-z, Institutional Repository
Interdisciplinary research is essential to address the complex environmental challenges faced by social-ecological systems (SES). However, it is often hindered by difficulties in integrating diverse knowledge and perspectives. Conceptual Frameworks (CFs) can act as boundary objects, facilitating integration in contexts with incomplete knowledge, nonlinearity, and divergent interests. Yet, guidance on developing CFs remains limited. To address this gap, we develop a structured approach and apply it within a research project focused on enhancing the resilience of Swiss Alpine ecosystems. Our approach includes three phases: (1) defining boundary concepts, (2) developing a CF as a boundary object, and (3) using the CF as a boundary object. The resulting CF supports communication, collaboration, and integration across disciplines, advancing SES research that addresses ecological resilience and sustainability. Our approach can be used by other interdisciplinary teams aiming to develop adaptable CFs that facilitate knowledge integration across disciplines.
2023
McFadden, I. R., Sendek, A., Brosse, M., Bach, P. M., Baity‐Jesi, M., Bolliger, J., … Narwani, A. (2023). Linking human impacts to community processes in terrestrial and freshwater ecosystems. Ecology Letters, 26(2), 203-218. doi:10.1111/ele.14153, Institutional Repository
Human impacts such as habitat loss, climate change and biological invasions are radically altering biodiversity, with greater effects projected into the future. Evidence suggests human impacts may differ substantially between terrestrial and freshwater ecosystems, but the reasons for these differences are poorly understood. We propose an integrative approach to explain these differences by linking impacts to four fundamental processes that structure communities: dispersal, speciation, species-level selection and ecological drift. Our goal is to provide process-based insights into why human impacts, and responses to impacts, may differ across ecosystem types using a mechanistic, eco-evolutionary comparative framework. To enable these insights, we review and synthesise (i) how the four processes influence diversity and dynamics in terrestrial versus freshwater communities, specifically whether the relative importance of each process differs among ecosystems, and (ii) the pathways by which human impacts can produce divergent responses across ecosystems, due to differences in the strength of processes among ecosystems we identify. Finally, we highlight research gaps and next steps, and discuss how this approach can provide new insights for conservation. By focusing on the processes that shape diversity in communities, we aim to mechanistically link human impacts to ongoing and future changes in ecosystems.
Dvorak, F., Glenk, K., Logar, I., Meyerhoff, J. (2023) Cognitive Models of Bayesian Anchoring in Discrete Choice Experiments. Available at http://dx.doi.org/10.2139/ssrn.4473059
2022
Faragò, M., Damgaard, A., Logar, I., & Rygaard, M. (2022). Life cycle assessment and cost-benefit analysis of technologies in water resource recovery facilities: the case of sludge pyrolysis. Environmental Science and Technology, 56(24), 17988-17997. doi:10.1021/acs.est.2c06083, Institutional Repository
In Europe, sewage sludge is mostly used in agriculture (49%) or incinerated (25%). Technologies for sludge management that can support the transformation of wastewater treatment plants (WWTPs) to water resource recovery facilities (WRRFs) are emerging. Sludge pyrolysis is one of them. It can generate two main high-value co-products: heat and biochar. Moreover, biochar can be transformed into activated carbon. The economic and environmental impacts of sludge pyrolysis and its comparison to the direct application of sludge in agriculture and incineration are unknown. Therefore, we applied a life cycle assessment (LCA) and a cost-benefit analysis (CBA) of sludge pyrolysis. We quantified environmental externalities in an LCA and then applied the benefit transfer method to monetize these externalities, which were included in an economic CBA. Pyrolysis reduced impacts in five to nine LCA categories and had a positive economic net present value (NPV) compared to using sludge in agriculture. Pyrolysis with biochar production was not better than incineration, showing increased impacts in nine categories and negative NPVs (−19 to −22 €/t sludge). The factor driving differences between the alternatives was the assumed CO2 externality price (164 €/ton CO2-eq) and the removal rate of pharmaceutical micropollutants of the sludge-based activated carbon. High uncertainty in environmental prices is one of the limitations of our study.
Moor, H., Gossner, M. M., Graham, C., Hobi, M. L., Logar, I., Narwani, A., … Altermatt, F. (2022). Besserer Biodiversitätsschutz in Blau-Grünen Ökosystemen. Des écosystèmes bleus-verts pour mieux protéger la biodiversité. Nature et Paysage. Natur und Landschaft: Inside (1), 25-29. , Institutional Repository
Obwohl aquatische (blaue) und terrestrische (grüne) Ökosysteme eng miteinander verwoben sind, werden sie oft getrennt voneinander betrachtet und verwaltet. Um Biodiversität Ökosystem-übergreifend besser zu schützen, braucht es integrative Ansätze in Forschung, Praxis und Gesetzgebung.
Bien qu’ils soient interdépendants, les écosystèmes aquatiques (bleus) et terrestres (verts) sont trop souvent appréhendés isolément les uns des autres. Pour que la conservation de la biodiversité soit plus efficace, la recherche, la pratique et la législation doivent dépasser cette approche cloisonnée au profit d’une vision inter-écosystémique.
Moor, H., Gossner, M. M., Graham, C., Hobi, M. L., Logar, I., Matthews, B., … Altermatt, F. (2022). Blau-grüne Biodiversität ist ein wichtiger Teil des Waldes. Wald und Holz, 103(4), 30-33. , Institutional Repository
Im Wald gibt es eine Vielfalt von Lebensräumen und Arten, die von Wechselwirkungen zwischen Wasser und Land beeinflusst sind. Ein grösseres Bewusstsein für diese gegenseitige Abhängigkeit ermöglicht effektiveren Biodiversitätsschutz.
Pastor, A. V., Tzoraki, O., Bruno, D., Kaletová, T., Mendoza-Lera, C., Alamanos, A., … Jorda-Capdevila, D. (2022). Rethinking ecosystem service indicators for their application to intermittent rivers. Ecological Indicators, 137, 108693 (17 pp.). doi:10.1016/j.ecolind.2022.108693, Institutional Repository
In these times of strong pressure on aquatic ecosystems and water resources due to climate change and water abstraction, intermittent rivers and ephemeral streams (IRES) (rivers that periodically cease to flow and/or dry) have become valuable assets. Indeed, not only do they supply water but they also offer services for humanity. Despite a growing recognition towards IRES, information for assessing their ecosystem services (ES) remains scarce. In a first step, an international interdisciplinary group of researchers developed a methodological framework to acknowledge ES provided by IRES using 109 indicators. A subset of selected ES indicators was then applied to two case studies: the Rio Seco in the Algarve (Portugal) and the Giofyros River in Crete (Greece). This paper discusses the applicability of these indicators, including the temporal and spatial variability of IRES flow regimes. Aspects of the framework, such as the methods and time required for data collection, the nature (demand or supply) and functionality of each indicator are discussed. The new framework accounts for flow intermittence in ES analyses and can help scientists and water managers to i) increase the ease and justification for IRES use in management approaches and ii) improve their conservation and restoration with a comprehensive set of appropriate indicators for IRES. In addition, the comprehensive nature of the proposed indicators ensures that they can be understood by a broad audience and easily applicable. Since they were designed through a public participation process, the setting has been prepared for holistic stakeholder analysis and education around IRES functions and associated ES. From a management point of view, it would be particularly relevant to perform an economic evaluation with this new framework to understand the value of each ES category and their trade-offs. For the scientific community, however, it is important to consider public preferences to design socially accepted policies. The proposed indicators can successfully bridge these elements, hereby establishing a solid basis for the assessment of ES provided by IRES.
Späti, K., Huber, R., Logar, I., & Finger, R. (2022). Data on the stated adoption decisions of Swiss farmers for variable rate nitrogen fertilization technologies. Data in Brief, 41, 107979 (8 pp.). doi:10.1016/j.dib.2022.107979, Institutional Repository
We present data on the stated preference for the adoption of variable rate technologies from 418 crop farmers in Switzerland. The online survey was conducted online in spring 2021. It consisted of two parts: 1) a choice experiment and 2) questions about farmers' characteristics, expectations and beliefs, as well as their risk preferences. In the choice experiment, farmers were presented with eight consecutive choice tasks. Each task consisted of three alternatives, two hypothetical scenarios for variable rate technologies adoption and the status quo option. We used a split-sample approach and varied the additional profit margin gained through higher yields, label premiums or subsidies for one subsample (focussing on the willigness to accept) and additional cost (acquisition, maintenance and other costs) for the other subsample (focussing on the willigness to pay). Non-monetary attributes include 1) ownership of the technology; 2) potential to increase nitrogen use efficiency and thus reduce nitrogen losses to the environment; 3) uncertainties about the actual impact of the technology on yields and profits (reliability); 4) support in case of technical difficulties. We also collected data on farmers' experiences, attitudes and goals, as well as their risk preferences. Additionally, the survey data were matched with data from the cantonal farm census, which contains information on farm characteristics.
Späti, K., Huber, R., Logar, I., & Finger, R. (2022). Incentivizing the adoption of precision agricultural technologies in small‐scaled farming systems: a choice experiment approach. Journal of the Agricultural and Applied Economics Association, 1(3), 236-253. doi:10.1002/jaa2.22, Institutional Repository
Precision farming technologies are expected to reduce nutrient surplus in agriculture. Uptake of these technologies in European farming systems, however, is low and policy incentives are needed to promote environmental benefits. We conducted a choice experiment with 418 Swiss farmers to elicit their preferences for site-specific nitrogen fertilization technologies. Using a split-sample approach, we elicit both willingness-to-accept and willingness-to-pay welfare measures. Results show that welfare measures for the nitrogen reduction potential vary significantly between the two samples. This indicates that the policy design affects farmers' preferences and willingness to adopt precision farming technologies that reduce nitrogen losses from agricultural production.
2021
Jorda-Capdevila, D., Iniesta-Arandia, I., Quintas-Soriano, C., Basdeki, A., Calleja, E. J., DeGirolamo, A. M., … Padło, T. (2021). Disentangling the complexity of socio-cultural values of temporary rivers. Ecosystems and People, 17(1), 235-247. doi:10.1080/26395916.2021.1912186, Institutional Repository
In the last decade, an awareness towards temporary rivers has increased globally in response to drying climates and growing human demand for water. However, social perceptions of temporary rivers have rarely been incorporated in their science and management. In this study, we advance an understanding of the socio-cultural values of temporary rivers principally in a European context. We used an ecosystem services-based approach for a participatory and deliberative exercise with 16 researchers and managers. Our results point out to two important aspects of socio-cultural values in temporary rivers. First, cultural ecosystem services have high socio-cultural values and usually represent the interests of the less influential stakeholders in related conflicts. And second, the temporal and geographical variability of these types of rivers is key to understand their socio-cultural values. As an example, the low provision of freshwater in a long non-flowing phase is one of the reasons for its high value. The results above point to future research needs that deserve more attention like the study of tradeoffs and synergies of ecosystem services and interdisciplinary research and management. We finally acknowledge the need to conduct case study research to account for geographical variation and to include the multiple views of different stakeholder groups.
Kaletova, T., Rodriguez-Lozano, P., Berger, E., Filipa Filipe, A., Logar, I., Alves, M. H., … Jorda-Capdevila, D. (2021). Considering temporal flow variability of non-perennial rivers in assessing ecosystem service provision. Ecosystem Services, 52, 101368 (6 pp.). doi:10.1016/j.ecoser.2021.101368, Institutional Repository
The basis for the assessment of ecosystem services (ES) of non-perennial rivers to date has been a comparison of the ES provision among three different hydrological phases: flowing conditions, isolated pools, and dry streambeds. Being of an opinion that this practice might promote an incomplete and hence biased ES assessment, we propose two considerations for the ES assessment of non-perennial rivers. First, the conditions of each hydrological phase can vary based on the nature of multiple aquatic states. Second, the duration, frequency, timing, and magnitude of the aquatic states matter in the ES provision. Different scenarios of flow regime should be compared instead of hydrological phases in ES assessments. Our proposal sheds some light on the complexity of non-perennial rivers and allows for a better understanding of relationships between non-perennial rivers and society. Therefore, it can serve as the basis for the proper and participatory ES assessment, face for trade-offs between ecosystem conservation and resource use and reduce conflicts among stakeholders within river and water management.
Moor, H., Gossner, M. M., Graham, C., Hobi, M. L., Holderegger, R., Reber, U., … Shipley, R. (2021). Biodiversitätsschutz dank Ökosystem-übergreifendem Denken. Forschungsinitiative Blau-Grüne Biodiversität (BGB). Aqua & Gas, 101(12), 44-49. , Institutional Repository
Aquatische und terrestrische Ökosysteme sind eng miteinander verknüpft - sowohl durch die Bewegungen von Organismen wie auch durch den Austausch von Nährstoffen oder Schadstoffen. Dennoch werden in der Regel Wasser- und Land-Ökosysteme isoliert voneinander betrachtet und verwaltet. Diese Silo-Mentalität in Forschung, Praxis und Gesetzgebung behindert integrative Ansätze für den effektiveren Schutz der Biodiversität.
2020
Logar, I., Brouwer, R., & Campbell, D. (2020). Does attribute order influence attribute-information processing in discrete choice experiments?. Resource and Energy Economics, 60, 101164 (21 pp.). doi:10.1016/j.reseneeco.2020.101164, Institutional Repository
The existing empirical evidence shows that both contingent valuation and discrete choice experiment (DCE) methods are susceptible to various ordering effects. However, very few studies have analysed attribute-ordering effects in DCEs, and no study has investigated their potential influence on information-processing strategies, such as attribute non-attendance (ANA). This paper tests for attribute-ordering effects and examines whether the order of attributes describing the alternatives affects respondents' propensity to attend to or ignore an attribute. A split-sample approach is used, where one sample received a DCE version in which the positions of the first and last non-monetary attributes are switched across the sequence of choice tasks compared with the other sample. The results show that attribute order does not affect welfare estimates in a significant way under the standard assumption of full attribute attendance, thus rejecting the notion of procedural bias. However, the welfare estimates for the attributes whose order was reversed and the share of respondents who ignored them differ significantly between the two attribute-ordering treatments once ANA behaviour is accounted for in the estimated choice models. These results highlight the important role of information-processing strategies in the design and evaluation of DCEs.
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description => protected'Switzerland plans to restore 4000 km of rivers by 2090. Despite the immense investment costs, river restoration benefits have not been valued in monetar y terms, and a cost-benefit analysis (CBA) does not exist for any river rest oration project in Switzerland. We apply stated preference methods to elicit public preferences and willingness to pay for restoring two specific but re presentative river sites. The benefits of restoration are compared with its costs. Upscaling the results to the national level shows that the government budget allocated for river restoration (CHF 1200/m) is insufficient to cove r the costs of local restoration projects. However, the surveyed local popul ations are willing to pay substantially more for restoring rivers in their a rea of residence than they are legally obliged to do. The CBA results demons trate that the benefits outweigh the costs in the two case studies, and henc e that restoration efforts are justified from an economic point of view. A s ensitivity analysis shows that the main results and conclusions do not chang e when we change some of the key assumptions underlying the CBA.' (1128 chars)
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description => protected'This study investigates choice certainty, choice consistency, and choice mon otonicity and their underlying common and idiosyncratic determinants in disc rete choice experiments. We test the equality of choice behaviour between re spondents who differ with respect to these concepts. Our results suggest tha t there are significant differences in the choice behaviour between certain and uncertain, as well as consistent and inconsistent, respondents. The hypo thesis of equality of choice behaviour between samples with and without a se lf-reported choice certainty follow-up question cannot be rejected. We ident ify a variety of idiosyncratic determinants of choice certainty, consistency , and monotonicity, but only the time spent reading informational pages and gender are identified as common drivers. We find that female respondents are less certain about their choices, but display a higher degree of monotonici ty and consistency in their choice behaviour.' (957 chars)
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title => protected'A review of economic approaches modeling the complex interactions between fo rest management and watershed services' (114 chars)
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description => protected'This paper provides a comprehensive review of two decades of published resea rch that applies different economic approaches to address forested watershed management decisions. The review takes stock of the applied integrated econ omic and ecohydrological modeling approaches and assesses the way these appr oaches capture the complexities involved when linking ecohydrological and ec onomic systems. The implications of integrating watershed services into fore st management decisions are discussed, lessons are drawn from existing appro aches and future research needs identified. Existing modeling approaches are categorized from independent modular models with a unidirectional flow of i nformation to fully coupled holistic models, and are analyzed, among others, in terms of the efficiency improvement that forest-based investments achiev e in watershed services provision. The review shows that the number of studi es investigating the relationship between forest management and watershed se rvices in economic decision-support models is very limited. Only 14 studies that were identified examine these relationships for water supply, while 9 s tudies were found to focus on the impact on water quality, 2 of which addres sed water quality in combination with water supply. A shortcoming is that ab out half of the studies do not clearly specify baseline conditions to test t he incremental value of the evaluated forest management actions in terms of watershed services provision, which undermines evaluating their cost-effecti veness or economic efficiency. A promising finding is nevertheless that in 8 of the 10 studies where these relationships were evaluated in terms of thei r costs and benefits compared to a specified baseline alternative, forest co nservation or forest management is shown to be an economically efficient nat ure-based solution to supply the watershed services of interest. The limited availability of geo-referenced data and information, including the often co mplex and confidential n...' (2536 chars)
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description => protected'Decision-making about flood protection is surrounded by outcome uncertainty. In this paper we look at the influence of individual risk attitudes on floo d protection decisions. To this end, we combine the results of a lottery gam e with the findings from a discrete choice experiment focusing on flood risk reduction measures. We find that the inclusion of non-linear probability we ighting increases the explanatory power of the choice model. The result is h owever sensitive to behavioral assumptions about decisions under uncertainty , as well as whether the lottery was played in the loss or gain domain. Incl uding risk attitudes in the probability weighted model decreases marginal wi llingness to pay for measures with a low to intermediate flood risk reductio n capacity and increases marginal willingness to pay for measures with a ver y high flood risk reduction effect. This has important implications for the social acceptability of flood reduction measures under different baseline co nditions.' (997 chars)
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Do the societal benefits of river restoration outweigh their costs? A cost-benefit analysis
Switzerland plans to restore 4000 km of rivers by 2090. Despite the immense investment costs, river restoration benefits have not been valued in monetary terms, and a cost-benefit analysis (CBA) does not exist for any river restoration project in Switzerland. We apply stated preference methods to elicit public preferences and willingness to pay for restoring two specific but representative river sites. The benefits of restoration are compared with its costs. Upscaling the results to the national level shows that the government budget allocated for river restoration (CHF 1200/m) is insufficient to cover the costs of local restoration projects. However, the surveyed local populations are willing to pay substantially more for restoring rivers in their area of residence than they are legally obliged to do. The CBA results demonstrate that the benefits outweigh the costs in the two case studies, and hence that restoration efforts are justified from an economic point of view. A sensitivity analysis shows that the main results and conclusions do not change when we change some of the key assumptions underlying the CBA.
Logar, I.; Brouwer, R.; Paillex, A. (2019) Do the societal benefits of river restoration outweigh their costs? A cost-benefit analysis, Journal of Environmental Management, 232, 1075-1085, doi:10.1016/j.jenvman.2018.11.098, Institutional Repository
Choice certainty, consistency, and monotonicity in discrete choice experiments
This study investigates choice certainty, choice consistency, and choice monotonicity and their underlying common and idiosyncratic determinants in discrete choice experiments. We test the equality of choice behaviour between respondents who differ with respect to these concepts. Our results suggest that there are significant differences in the choice behaviour between certain and uncertain, as well as consistent and inconsistent, respondents. The hypothesis of equality of choice behaviour between samples with and without a self-reported choice certainty follow-up question cannot be rejected. We identify a variety of idiosyncratic determinants of choice certainty, consistency, and monotonicity, but only the time spent reading informational pages and gender are identified as common drivers. We find that female respondents are less certain about their choices, but display a higher degree of monotonicity and consistency in their choice behaviour.
Mattmann, M.; Logar, I.; Brouwer, R. (2019) Choice certainty, consistency, and monotonicity in discrete choice experiments, Journal of Environmental Economics and Policy, 8(2), 109-127, doi:10.1080/21606544.2018.1515118, Institutional Repository
A review of economic approaches modeling the complex interactions between forest management and watershed services
This paper provides a comprehensive review of two decades of published research that applies different economic approaches to address forested watershed management decisions. The review takes stock of the applied integrated economic and ecohydrological modeling approaches and assesses the way these approaches capture the complexities involved when linking ecohydrological and economic systems. The implications of integrating watershed services into forest management decisions are discussed, lessons are drawn from existing approaches and future research needs identified. Existing modeling approaches are categorized from independent modular models with a unidirectional flow of information to fully coupled holistic models, and are analyzed, among others, in terms of the efficiency improvement that forest-based investments achieve in watershed services provision. The review shows that the number of studies investigating the relationship between forest management and watershed services in economic decision-support models is very limited. Only 14 studies that were identified examine these relationships for water supply, while 9 studies were found to focus on the impact on water quality, 2 of which addressed water quality in combination with water supply. A shortcoming is that about half of the studies do not clearly specify baseline conditions to test the incremental value of the evaluated forest management actions in terms of watershed services provision, which undermines evaluating their cost-effectiveness or economic efficiency. A promising finding is nevertheless that in 8 of the 10 studies where these relationships were evaluated in terms of their costs and benefits compared to a specified baseline alternative, forest conservation or forest management is shown to be an economically efficient nature-based solution to supply the watershed services of interest. The limited availability of geo-referenced data and information, including the often complex and confidential nature of cost and price data, and the high data demands of more advanced spatial econometric models are among the main barriers to address relevant forest and water economic interactions. Important future extensions of existing integrated approaches include the further coupling of more detailed ecohydrological models and multi-sectoral hydro-economic models that are able to account for the different risks (floods, droughts, wildfires) and uncertainties under climate change and their impact on watershed services and water security.
Ovando, P.; Brouwer, R. (2019) A review of economic approaches modeling the complex interactions between forest management and watershed services, Forest Policy and Economics, 100, 164-176, doi:10.1016/j.forpol.2018.12.007, Institutional Repository
Combining risk attitudes in a lottery game and flood risk protection decisions in a discrete choice experiment
Decision-making about flood protection is surrounded by outcome uncertainty. In this paper we look at the influence of individual risk attitudes on flood protection decisions. To this end, we combine the results of a lottery game with the findings from a discrete choice experiment focusing on flood risk reduction measures. We find that the inclusion of non-linear probability weighting increases the explanatory power of the choice model. The result is however sensitive to behavioral assumptions about decisions under uncertainty, as well as whether the lottery was played in the loss or gain domain. Including risk attitudes in the probability weighted model decreases marginal willingness to pay for measures with a low to intermediate flood risk reduction capacity and increases marginal willingness to pay for measures with a very high flood risk reduction effect. This has important implications for the social acceptability of flood reduction measures under different baseline conditions.
Glatt, M.; Brouwer, R.; Logar, I. (2019) Combining risk attitudes in a lottery game and flood risk protection decisions in a discrete choice experiment, Environmental and Resource Economics, 74(4), 1533-1562, doi:10.1007/s10640-019-00379-y, Institutional Repository
Amjath-Babua, T.S., Sharmab, B., Brouwer, R., Rasulb, G., Wahide, S.M., Neupaneb, N., Bhattaraif, U. and Sieber, S. (2019). Integrated modelling of the impacts of hydropower projects on the waterfood-energy nexus in a transboundary Himalayan river basin. Applied Energy, 239: 494-503.
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authors => protected'Logar, I.; Brouwer, R.' (32 chars)
title => protected'Substitution effects and spatial preference heterogeneity in single- and mul tiple-site choice experiments' (105 chars)
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description => protected'A novel discrete choice experiment (DCE) design allows testing of substituti on effects based on the framing of, and distances to, substitute sites. The same ecosystem services and biodiversity provided at different sites are val ued independently in single- site DCEs and simultaneously in a multiple- sit e DCE, using an identical experimental design. Site-specific utility functio ns are estimated with and without controlling for spatial preference heterog eneity. Framing choices as alternative projects at single or multiple sites significantly influences substitutability between sites, choice behavior, an d welfare estimates. Distance decay displays significant heterogeneity in di fferent directions from the valued sites and between urban and rural areas.' (759 chars)
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authors => protected'Schuwirth, N.; Honti, M.; Logar, I.; Stamm, C.' (66 chars)
title => protected'Multi-criteria decision analysis for integrated water quality assessment and management support' (95 chars)
journal => protected'Water Research X' (16 chars)
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startpage => protected'100010 (11 pp.)' (15 chars)
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categories => protected'integrated assessment; uncertainty; water quality modelling; scenario analys is; cost-effectiveness analysis; micropollutants' (124 chars)
description => protected'In densely populated areas, surface waters are affected by many sources of p ollution. Besides classical pollutants like nutrients and organic matter tha t lead to eutrophication, micropollutants from various point- and non-point sources are getting more attention by water quality managers. For cost-effec tive management an integrated assessment is needed that takes into account a ll relevant pollutants and all sources of pollution within a catchment. Due to the difficulty of identifying and quantifying sources of pollution and th e need for considering long-term changes in boundary conditions, typically s ubstantial uncertainty exists about the consequences of potential management alternatives to improve surface water quality. We therefore need integrated assessment methods that are able to deal with multiple objectives and accou nt for various sources of uncertainty.<br /> This paper aims to contribute t o integrated, prospective water management by combining a) multi-criteria de cision support methods to structure the decision process and quantify prefer ences, b) integrated water quality modelling to predict consequences of mana gement alternatives accounting for uncertainty, and c) scenario planning to consider uncertainty from potential future climate and socio-economic develo pments, to evaluate the future cost-effectiveness of water quality managemen t alternatives at the catchment scale. It aims to demonstrate the usefulness of multi-attribute value functions for water quality assessment to i) propa gate uncertainties throughout the entire assessment procedure, ii) facilitat e the aggregation of multiple objectives while avoiding discretization error s when using categories for sub-objectives, iii) transparently communicate t he results. We show how to use such multi-attribute value functions for mode l-based decision support in water quality management.<br /> We showcase the procedure for the Mönchaltorfer Aa catchment on the Swiss Plateau. We evalu ate ten different water ...' (2709 chars)
serialnumber => protected'2589-9147' (9 chars)
doi => protected'10.1016/j.wroa.2018.100010' (26 chars)
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Substitution effects and spatial preference heterogeneity in single- and multiple-site choice experiments
A novel discrete choice experiment (DCE) design allows testing of substitution effects based on the framing of, and distances to, substitute sites. The same ecosystem services and biodiversity provided at different sites are valued independently in single- site DCEs and simultaneously in a multiple- site DCE, using an identical experimental design. Site-specific utility functions are estimated with and without controlling for spatial preference heterogeneity. Framing choices as alternative projects at single or multiple sites significantly influences substitutability between sites, choice behavior, and welfare estimates. Distance decay displays significant heterogeneity in different directions from the valued sites and between urban and rural areas.
Logar, I.; Brouwer, R. (2018) Substitution effects and spatial preference heterogeneity in single- and multiple-site choice experiments, Land Economics, 94(2), 302-322, doi:10.3368/le.94.2.302, Institutional Repository
Multi-criteria decision analysis for integrated water quality assessment and management support
In densely populated areas, surface waters are affected by many sources of pollution. Besides classical pollutants like nutrients and organic matter that lead to eutrophication, micropollutants from various point- and non-point sources are getting more attention by water quality managers. For cost-effective management an integrated assessment is needed that takes into account all relevant pollutants and all sources of pollution within a catchment. Due to the difficulty of identifying and quantifying sources of pollution and the need for considering long-term changes in boundary conditions, typically substantial uncertainty exists about the consequences of potential management alternatives to improve surface water quality. We therefore need integrated assessment methods that are able to deal with multiple objectives and account for various sources of uncertainty. This paper aims to contribute to integrated, prospective water management by combining a) multi-criteria decision support methods to structure the decision process and quantify preferences, b) integrated water quality modelling to predict consequences of management alternatives accounting for uncertainty, and c) scenario planning to consider uncertainty from potential future climate and socio-economic developments, to evaluate the future cost-effectiveness of water quality management alternatives at the catchment scale. It aims to demonstrate the usefulness of multi-attribute value functions for water quality assessment to i) propagate uncertainties throughout the entire assessment procedure, ii) facilitate the aggregation of multiple objectives while avoiding discretization errors when using categories for sub-objectives, iii) transparently communicate the results. We show how to use such multi-attribute value functions for model-based decision support in water quality management. We showcase the procedure for the Mönchaltorfer Aa catchment on the Swiss Plateau. We evaluate ten different water quality management alternatives, including current practice, that tackle macro- and micropollutants from a wide spectrum of agricultural and urban sources. We evaluate costs and water quality effects of the alternatives under four different socio-economic scenarios for the horizon 2050 under present and future climate projections and visualize their uncertainty. While the performance of alternatives is catchment specific, the methods can be transferred to other places and other management situations. Results confirm the need for cross-sectoral coordination of different management actions and interdisciplinary collaboration to support the development of prospective strategies to improve water quality.
Schuwirth, N.; Honti, M.; Logar, I.; Stamm, C. (2018) Multi-criteria decision analysis for integrated water quality assessment and management support, Water Research X, 1, 100010 (11 pp.), doi:10.1016/j.wroa.2018.100010, Institutional Repository
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title => protected'The effect of risk communication on choice behavior, welfare estimates and c hoice certainty' (91 chars)
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categories => protected'discrete choice experiment; micropollutants; risk ladder; risk communication ; water quality' (91 chars)
description => protected'In stated preference research focusing on the elicitation of willingness to pay for reducing environmental or health risks, it is of crucial importance how risk is communicated to survey respondents. This study applies a split-s ample approach to examine the effect of using a risk ladder on choice behavi or, welfare estimates and choice certainty in a stated discrete choice exper iment. It values the improvement of water quality in Switzerland in terms of the reduction in environmental and public health risks that would result fr om implementing new wastewater treatment technologies that substantially red uce micropollutant discharges into water bodies. Results show that the risk ladder significantly influences respondents’ choice behavior and welfare e stimates, but not choice certainty. We find evidence of preference learning.' (836 chars)
serialnumber => protected'2212-4284' (9 chars)
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authors => protected'Brouwer, R.; Logar, I.; Sheremet, O.' (51 chars)
title => protected'Choice consistency and preference stability in test-retests of discrete choi ce experiment and open-ended willingness to pay elicitation formats' (143 chars)
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categories => protected'preference stability; choice consistency; discrete choice experiment; test-r etest; open-ended WTP' (97 chars)
description => protected'This study tests the temporal stability of preferences, choices and willingn ess to pay (WTP) values using both discrete choice experiment (DCE) and open -ended (OE) WTP elicitation formats. The same sample is surveyed three times over the course of two years using each time the same choice sets. Choice c onsistency is positively correlated with choice certainty and choice complex ity. The impact of choice complexity fades away in time, most likely as a re sult of learning and preference refinement. Although the OE WTP values remai n stable over a time period of 2 years as in previous stated preference stud ies, DCE based WTP measures differ significantly, suggesting their use in be nefits transfer may be limited.' (715 chars)
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authors => protected'Ovando, P.; Caparrós, A.; Diaz-Balteiro, L.; Pasalodos,  ;M.; Beguería, S.; Oviedo, J. L.; Montero, G.; Campos,& nbsp;P.' (159 chars)
title => protected'Spatial valuation of forests’ environmental assets: an application to Anda lusian silvopastoral farms' (102 chars)
journal => protected'Land Economics' (14 chars)
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description => protected'We develop a model that estimates spatially allocated environmental asset va lues for the simultaneous provision of seven ecosystem services. We examine the effect of heterogeneous spatial and economic factors on asset figures, a nd identify potential forestry abandonment problems when continuing with for estry activity becomes unprofitable for the landowner. Our results show a re levant spatial variability according to forest species distribution and stru cture. We examine potential trade-offs among silvopastoral provisioning serv ices, water, and carbon sequestration services. Results forecast the abandon ment of forestry activity and quantify the significant impact of discount ra tes and prices on asset values. (JEL Q23, Q51)' (730 chars)
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authors => protected'Tilley, E.; Logar, I.; Günther, I.' (50 chars)
title => protected'The effect of giving respondents time to think in a choice experiment: a con ditional cash transfer programme in South Africa' (124 chars)
journal => protected'Environment and Development Economics' (37 chars)
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description => protected'We conducted a choice experiment (CE) to estimate willingness to accept (WTA ) values for a planned conditional cash transfer (CCT) programme designed to increase toilet use in South Africa. The payment is made conditional on usi ng a toilet and bringing urine to a central collection point. In a split-sam ple approach, a segment of respondents were given time to think (TTT) (24 ho urs) about their responses, while the remaining respondents had to answer im mediately. We found significant differences in the choice behaviour between the subsamples. To validate the stated preferences with actual behaviour, a CCT programme was implemented afterwards. The stated WTA estimates were far below those revealed by actual behaviour for both subsamples. Contrary to ou r expectations, the TTT group had underestimated their actual WTA values by an even larger margin. The preferences for various attributes were neverthel ess useful in informing the design of the real intervention.' (972 chars)
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authors => protected'van Dijk, D.; Hendrix, E. M. T.; Haijema, R.; Groen eveld, R. A.; van Ierland, E. C.' (128 chars)
title => protected'An Adjustment Restriction on fish Quota: resource rents, overcapacity and re covery of fish stock' (96 chars)
journal => protected'Environmental and Resource Economics' (36 chars)
year => protected2017 (integer)
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categories => protected'fisheries management; quota adjustment restriction; investment behavior; sto chastic dynamic programming' (103 chars)
description => protected'Management objectives of the European Union for North Sea fish stocks are sh ifting towards considering both biological sustainability and economic benef its. As part of multiannual management plans, an adjustment restriction on f ish quota has been introduced. Its objective is to obtain an efficient fish stock and to reduce overcapacity for the fishing industry. We develop and ap ply a bi-level stochastic dynamic programming model to study the effect of a quota adjustment restriction on the net present value of resource rents, ov ercapacity and fish stock, when the system is recovering from a downward env ironmental shock. At level one, a policy maker sets the quota, considering f ishermen behavior, stochastic fish stock dynamics, capital stock dynamics an d a quota adjustment restriction. At level two, fishermen harvest myopically and make long-term investment decisions, assuming that fish stock and quota do not change over time. The two levels are linked by the quota, which is o ptimized by the policy maker at level one and becomes a restriction for myop ic harvest and long-term investment decisions of fishermen at level two. Our analysis suggests that in the long run, overcapacity can be reduced by 54 % at modest costs, namely at a 1 % reduction in the net present value of reso urce rents. Long and short run sustainability of the fish stock is not affec ted.' (1372 chars)
serialnumber => protected'0924-6460' (9 chars)
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authors => protected'Campos, P.; Caparrós, A.; Cerdá, E.; Díaz-Balteiro, L .; Herruzo, A. C.; Huntsinger, L.; Martín-Barroso, D.; Martínez-Jauregui, M.; Ovando, P.; Oviedo, J. L.; Pasal odos-Tato, M.; Romero, C.; Soliño, M.; Standiford, R.&n bsp;B.' (310 chars)
title => protected'Multifunctional natural forest silviculture economics revised: challenges in meeting landowners’ and society's wants: a review' (128 chars)
journal => protected'Forest Systems' (14 chars)
year => protected2017 (integer)
volume => protected26 (integer)
issue => protected'2' (1 chars)
startpage => protected'eR01S (15 pp.)' (14 chars)
otherpage => protected'' (0 chars)
categories => protected'silvicultural modeling; multiple use; ecosystem accounting; multi-criteria a nalysis; environmental valuation; commercial auto-consumption; private ameni ty' (154 chars)
description => protected'<i>Aim of study</i>: this paper objective focuses on the contribution of mul tifunctional natural forest silviculture, incorporating both private and pub lic product managements, to forest and woodland economics. <br/> <i>Area of study</i>: Spain and California (USA).<br/> <i>Material and methods</i>: thi s conceptual article has developed a critical revision of the existing liter ature on the main economic issues about the multifunctional natural forest s ilviculture in the last decades.<br/> <i>Main results</i>: multifunctional n atural silviculture has secular roots as a local practice, but as a science of the natural environment applied to the economic management of forest land s it is still in the process of maturation. Timber silviculture remains the central concern of forest economics investment in scientific publications. B y contrast, silvicultural modeling of the natural growth of firewood, browse and other non-timber forest products of trees and shrubs receives scant att ention in scientific journals. Even rarer are publications on multifunctiona l natural silviculture of forest and woodland managements, including environ mental services geared to people’s active and passive consumption. Under t his umbrella, private environmental self-consumption is represented by the a menities enjoyed by private non-industrial landowners. As for environmental public products, the most relevant are carbon, water, mushrooms, recreation, landscape and threatened biodiversity.<br/> <i>Research highlights</i>: thi s paper is a good example about the conceptual research on forestry techniqu es and economic concepts applied to multifunctional silviculture in Mediterr anean areas of Spain and California. The combination of technical knowledge and private and public economic behaviors definitively contributes to the mu ltifunctional management of natural forest systems.' (1875 chars)
serialnumber => protected'2171-5068' (9 chars)
doi => protected'10.5424/fs/2017262-10505' (24 chars)
uid => protected15491 (integer)
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The effect of risk communication on choice behavior, welfare estimates and choice certainty
In stated preference research focusing on the elicitation of willingness to pay for reducing environmental or health risks, it is of crucial importance how risk is communicated to survey respondents. This study applies a split-sample approach to examine the effect of using a risk ladder on choice behavior, welfare estimates and choice certainty in a stated discrete choice experiment. It values the improvement of water quality in Switzerland in terms of the reduction in environmental and public health risks that would result from implementing new wastewater treatment technologies that substantially reduce micropollutant discharges into water bodies. Results show that the risk ladder significantly influences respondents’ choice behavior and welfare estimates, but not choice certainty. We find evidence of preference learning.
Logar, I.; Brouwer, R. (2017) The effect of risk communication on choice behavior, welfare estimates and choice certainty, Water Resources and Economics, 18, 34-50, doi:10.1016/j.wre.2016.11.004, Institutional Repository
Choice consistency and preference stability in test-retests of discrete choice experiment and open-ended willingness to pay elicitation formats
This study tests the temporal stability of preferences, choices and willingness to pay (WTP) values using both discrete choice experiment (DCE) and open-ended (OE) WTP elicitation formats. The same sample is surveyed three times over the course of two years using each time the same choice sets. Choice consistency is positively correlated with choice certainty and choice complexity. The impact of choice complexity fades away in time, most likely as a result of learning and preference refinement. Although the OE WTP values remain stable over a time period of 2 years as in previous stated preference studies, DCE based WTP measures differ significantly, suggesting their use in benefits transfer may be limited.
Brouwer, R.; Logar, I.; Sheremet, O. (2017) Choice consistency and preference stability in test-retests of discrete choice experiment and open-ended willingness to pay elicitation formats, Environmental and Resource Economics, 68(3), 729-751, doi:10.1007/s10640-016-0045-z, Institutional Repository
Spatial valuation of forests’ environmental assets: an application to Andalusian silvopastoral farms
We develop a model that estimates spatially allocated environmental asset values for the simultaneous provision of seven ecosystem services. We examine the effect of heterogeneous spatial and economic factors on asset figures, and identify potential forestry abandonment problems when continuing with forestry activity becomes unprofitable for the landowner. Our results show a relevant spatial variability according to forest species distribution and structure. We examine potential trade-offs among silvopastoral provisioning services, water, and carbon sequestration services. Results forecast the abandonment of forestry activity and quantify the significant impact of discount rates and prices on asset values. (JEL Q23, Q51)
Ovando, P.; Caparrós, A.; Diaz-Balteiro, L.; Pasalodos, M.; Beguería, S.; Oviedo, J. L.; Montero, G.; Campos, P. (2017) Spatial valuation of forests’ environmental assets: an application to Andalusian silvopastoral farms, Land Economics, 93(1), 87-108, doi:10.3368/le.93.1.87, Institutional Repository
The effect of giving respondents time to think in a choice experiment: a conditional cash transfer programme in South Africa
We conducted a choice experiment (CE) to estimate willingness to accept (WTA) values for a planned conditional cash transfer (CCT) programme designed to increase toilet use in South Africa. The payment is made conditional on using a toilet and bringing urine to a central collection point. In a split-sample approach, a segment of respondents were given time to think (TTT) (24 hours) about their responses, while the remaining respondents had to answer immediately. We found significant differences in the choice behaviour between the subsamples. To validate the stated preferences with actual behaviour, a CCT programme was implemented afterwards. The stated WTA estimates were far below those revealed by actual behaviour for both subsamples. Contrary to our expectations, the TTT group had underestimated their actual WTA values by an even larger margin. The preferences for various attributes were nevertheless useful in informing the design of the real intervention.
Tilley, E.; Logar, I.; Günther, I. (2017) The effect of giving respondents time to think in a choice experiment: a conditional cash transfer programme in South Africa, Environment and Development Economics, 22(2), 202-227, doi:10.1017/S1355770X16000280, Institutional Repository
An Adjustment Restriction on fish Quota: resource rents, overcapacity and recovery of fish stock
Management objectives of the European Union for North Sea fish stocks are shifting towards considering both biological sustainability and economic benefits. As part of multiannual management plans, an adjustment restriction on fish quota has been introduced. Its objective is to obtain an efficient fish stock and to reduce overcapacity for the fishing industry. We develop and apply a bi-level stochastic dynamic programming model to study the effect of a quota adjustment restriction on the net present value of resource rents, overcapacity and fish stock, when the system is recovering from a downward environmental shock. At level one, a policy maker sets the quota, considering fishermen behavior, stochastic fish stock dynamics, capital stock dynamics and a quota adjustment restriction. At level two, fishermen harvest myopically and make long-term investment decisions, assuming that fish stock and quota do not change over time. The two levels are linked by the quota, which is optimized by the policy maker at level one and becomes a restriction for myopic harvest and long-term investment decisions of fishermen at level two. Our analysis suggests that in the long run, overcapacity can be reduced by 54 % at modest costs, namely at a 1 % reduction in the net present value of resource rents. Long and short run sustainability of the fish stock is not affected.
van Dijk, D.; Hendrix, E. M. T.; Haijema, R.; Groeneveld, R. A.; van Ierland, E. C. (2017) An Adjustment Restriction on fish Quota: resource rents, overcapacity and recovery of fish stock, Environmental and Resource Economics, 67(2), 203-230, doi:10.1007/s10640-015-9983-0, Institutional Repository
Multifunctional natural forest silviculture economics revised: challenges in meeting landowners’ and society's wants: a review
Aim of study: this paper objective focuses on the contribution of multifunctional natural forest silviculture, incorporating both private and public product managements, to forest and woodland economics. Area of study: Spain and California (USA). Material and methods: this conceptual article has developed a critical revision of the existing literature on the main economic issues about the multifunctional natural forest silviculture in the last decades. Main results: multifunctional natural silviculture has secular roots as a local practice, but as a science of the natural environment applied to the economic management of forest lands it is still in the process of maturation. Timber silviculture remains the central concern of forest economics investment in scientific publications. By contrast, silvicultural modeling of the natural growth of firewood, browse and other non-timber forest products of trees and shrubs receives scant attention in scientific journals. Even rarer are publications on multifunctional natural silviculture of forest and woodland managements, including environmental services geared to people’s active and passive consumption. Under this umbrella, private environmental self-consumption is represented by the amenities enjoyed by private non-industrial landowners. As for environmental public products, the most relevant are carbon, water, mushrooms, recreation, landscape and threatened biodiversity. Research highlights: this paper is a good example about the conceptual research on forestry techniques and economic concepts applied to multifunctional silviculture in Mediterranean areas of Spain and California. The combination of technical knowledge and private and public economic behaviors definitively contributes to the multifunctional management of natural forest systems.
Campos, P.; Caparrós, A.; Cerdá, E.; Díaz-Balteiro, L.; Herruzo, A. C.; Huntsinger, L.; Martín-Barroso, D.; Martínez-Jauregui, M.; Ovando, P.; Oviedo, J. L.; Pasalodos-Tato, M.; Romero, C.; Soliño, M.; Standiford, R. B. (2017) Multifunctional natural forest silviculture economics revised: challenges in meeting landowners’ and society's wants: a review, Forest Systems, 26(2), eR01S (15 pp.), doi:10.5424/fs/2017262-10505, Institutional Repository
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title => protected'Hydropower externalities: a meta-analysis' (41 chars)
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otherpage => protected'77' (2 chars)
categories => protected'hydropower; renewable energy; externalities; non-market valuation; meta-regr ession; sensitivity to scope' (104 chars)
description => protected'This paper presents a meta-analysis of existing research related to the econ omic valuation of the external effects of hydropower. A database consisting of 81 observations derived from 29 studies valuing the non-market impacts of hydropower electricity generation is constructed with the main aim to quant ify and explain the economic values for positive and negative hydropower ext ernalities. Different meta-regression model specifications are used to test the robustness of significant determinants of non-market values, including d ifferent types of hydropower impacts. The explanatory and predictive power o f the estimated models is relatively high. Whilst controlling for sample and study characteristics, we find significant evidence for public aversion tow ards deteriorations of landscape, vegetation and wildlife caused by hydropow er projects. There is however only weak evidence of willingness to pay for m itigating these effects. The main positive externality of hydropower generat ion, the avoidance of greenhouse gas emission, positively influences welfare estimates when combined with the share of hydropower in national energy pro duction. Sensitivity to scope is detected, but not linked to specific extern alities or non-market valuation methods.' (1256 chars)
serialnumber => protected'0140-9883' (9 chars)
doi => protected'10.1016/j.eneco.2016.04.016' (27 chars)
uid => protected10599 (integer)
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authors => protected'van Dijk, D.; Siber, R.; Brouwer, R.; Logar, I.; Sanadgo l, D.' (86 chars)
title => protected'Valuing water resources in Switzerland using a hedonic price model' (66 chars)
journal => protected'Water Resources Research' (24 chars)
year => protected2016 (integer)
volume => protected52 (integer)
issue => protected'5' (1 chars)
startpage => protected'3510' (4 chars)
otherpage => protected'3526' (4 chars)
categories => protected'' (0 chars)
description => protected'In this paper, linear and spatial hedonic price models are applied to the ho using market in Switzerland, covering all 26 cantons in the country over the period 2005–2010. Besides structural house, neighborhood and socioeconomi c characteristics, we include a wide variety of new environmental characteri stics related to water to examine their role in explaining variation in sale s prices. These include water abundance, different types of water bodies, th e recreational function of water, and water disamenity. Significant spatial autocorrelation is found in the estimated models, as well as nonlinear effec ts for distances to the nearest lake and large river. Significant effects ar e furthermore found for water abundance and the distance to large rivers, bu t not to small rivers. Although in both linear and spatial models water rela ted variables explain less than 1% of the price variation, the distance to t he nearest bathing site has a larger marginal contribution than many neighbo rhood-related distance variables. The housing market shows to differentiate between different water related resources in terms of relative contribution to house prices, which could help the housing development industry make more geographically targeted planning activities.' (1261 chars)
serialnumber => protected'0043-1397' (9 chars)
doi => protected'10.1002/2015WR017534' (20 chars)
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authors => protected'Mattmann, M.; Logar, I.; Brouwer, R.' (51 chars)
title => protected'Wind power externalities: a meta-analysis' (41 chars)
journal => protected'Ecological Economics' (20 chars)
year => protected2016 (integer)
volume => protected127 (integer)
issue => protected'' (0 chars)
startpage => protected'23' (2 chars)
otherpage => protected'36' (2 chars)
categories => protected'wind power; renewable energy; externalities; non-market valuation; meta-regr ession' (82 chars)
description => protected'This study presents the first quantitative meta-analysis of the non-market v aluation literature on the external effects associated with wind power produ ction. A data set of 60 observations drawn from 32 studies is constructed. T he relative economic values of different types of externalities as well as t he impact of various methodological and sample characteristics on welfare es timates are examined. The results indicate a significant effect of visual ex ternalities on welfare estimates in both directions, i.e., a positive effect of visual improvements and a negative effect of deteriorations. This findin g corresponds to predictions of the importance of visual impacts in the soci al science literature. External effects of wind power on biodiversity (mainl y birds) do not affect welfare estimates. Indirect externalities caused by c onventional sources of electricity that can be avoided by wind power, such a s a the reduction of air pollution, do neither have a significant impact on welfare measures. Methodologically, we find substantial but inelastic income effects and, for choice experiments, clear evidence of sensitivity to scope . From a policy point of view, our results suggest that a policy mix combini ng a promotion of wind turbines with another green policy facilitates expans ion of wind energy.' (1311 chars)
serialnumber => protected'0921-8009' (9 chars)
doi => protected'10.1016/j.ecolecon.2016.04.005' (30 chars)
uid => protected10579 (integer)
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_versionedUid => protected10579 (integer)modifiedpid => protected124 (integer)3 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=10484, pid=124)originalId => protected10484 (integer)
authors => protected'Van Dijk, D.; Hendrix, E. M. T.' (51 chars)
title => protected'Pipe replacement in a water supply network: coordinated versus uncoordinated replacement and budget effects' (107 chars)
journal => protected'Informatica' (11 chars)
year => protected2016 (integer)
volume => protected27 (integer)
issue => protected'2' (1 chars)
startpage => protected'387' (3 chars)
otherpage => protected'403' (3 chars)
categories => protected'water supply network; pipe replacement; pipe failure; coordinated replacemen t' (77 chars)
description => protected'Operators of underground water supply networks are challenged with pipe repl acement decisions, because pipes are subject to increased failure rates as t hey age and financial resources are often limited. We study the optimal repl acement time and optimal number of pipe replacements such that the expected failure cost and replacement cost are minimized, while satisfying a budget c onstraint and incorporating uncoordinated and coordinated replacement. Resul ts show that coordinated replacement is economically preferred to uncoordina ted replacement. It depends on the size of the budget whether the increase i n the number of pipe replacements is sufficient to reduce the total expected failure cost.' (698 chars)
serialnumber => protected'0868-4952' (9 chars)
doi => protected'10.15388/Informatica.2016.91' (28 chars)
uid => protected10484 (integer)
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_versionedUid => protected10484 (integer)modifiedpid => protected124 (integer)4 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=10555, pid=124)originalId => protected10555 (integer)
authors => protected'Brouwer, R.; Brouwer, S.; Eleveld, M. A.; Verbraak,  ;M.; Wagtendonk, A. J.; van der Woerd, H. J.' (140 chars)
title => protected'Public willingness to pay for alternative management regimes of remote marin e protected areas in the North Sea' (110 chars)
journal => protected'Marine Policy' (13 chars)
year => protected2016 (integer)
volume => protected68 (integer)
issue => protected'' (0 chars)
startpage => protected'195' (3 chars)
otherpage => protected'204' (3 chars)
categories => protected'marine protected areas; Marine Strategy Framework Directive; public willingn ess to pay; contingent valuation; non-use value; marine biodiversity' (144 chars)
description => protected'Despite increasing attention paid to the value of marine resources, in parti cular marine protected areas (MPAs), their economic valuation focuses mainly on use values of ecosystem services such as fishery and tourism. Furthermor e, most MPA related studies are carried out for coastal ecosystems, especial ly tropical coral reefs. The valuation of remote marine ecosystems is rare. The main objective of this paper is to estimate public willingness to pay (W TP) for alternative management regimes of a network of offshore MPAs in the North Sea under the Marine Strategy Framework Directive (MSFD). In a baselin e valuation study carried out just before the adoption of the MSFD, beach vi sitors and a random sample of coastal and non-coastal residents were asked f or their preferences for two alternative management options of three remote, ecologically sensitive areas with multiple use conflicts. Despite the lack of public awareness and familiarity with the offshore marine areas, a majori ty of 70% is willing to pay extra tax for their protection. Using a conserva tive value elicitation procedure, Dutch households are willing to pay on ave rage maximum 0.25% of their annual disposable income to ban access and econo mic use. This serves as an indicator of what a network of remote MPAs in the MSFD is allowed to cost according to the Dutch tax payer.' (1350 chars)
serialnumber => protected'0308-597X' (9 chars)
doi => protected'10.1016/j.marpol.2016.03.001' (28 chars)
uid => protected10555 (integer)
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_versionedUid => protected10555 (integer)modifiedpid => protected124 (integer)5 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=11901, pid=124)originalId => protected11901 (integer)
authors => protected'Tesfaye, A.; Brouwer, R.' (34 chars)
title => protected'Exploring the scope for transboundary collaboration in the Blue Nile river b asin: downstream willingness to pay for upstream land use changes to improve irrigation water supply' (176 chars)
journal => protected'Environment and Development Economics' (37 chars)
year => protected2016 (integer)
volume => protected21 (integer)
issue => protected'2' (1 chars)
startpage => protected'180' (3 chars)
otherpage => protected'204' (3 chars)
categories => protected'' (0 chars)
description => protected'In this study we model the preferences and willingness to pay (WTP) of downs tream farmers in one of the largest irrigation schemes worldwide in Sudan fo r improved irrigation water supply through transboundary collaboration with farmers upstream in Ethiopia. In a choice experiment, Sudanese farmers are a sked to pay an increase in existing irrigation fees to secure future irrigat ion water availability by either enhancing the removal of sediments in their local irrigation channels or compensating farmers in the Ethiopian highland s for taking soil conservation measures to prevent land degradation and soil erosion. Although Sudanese farmers downstream do not feel very connected to farmers upstream in Ethiopia, we find a high degree of trust in internation al cooperation and a positive WTP for improved irrigation water supply and w ater use efficiency through transboundary collaboration.' (892 chars)
serialnumber => protected'1355-770X' (9 chars)
doi => protected'10.1017/S1355770X15000182' (25 chars)
uid => protected11901 (integer)
_localizedUid => protected11901 (integer)modified_languageUid => protectedNULL
_versionedUid => protected11901 (integer)modifiedpid => protected124 (integer)
Hydropower externalities: a meta-analysis
This paper presents a meta-analysis of existing research related to the economic valuation of the external effects of hydropower. A database consisting of 81 observations derived from 29 studies valuing the non-market impacts of hydropower electricity generation is constructed with the main aim to quantify and explain the economic values for positive and negative hydropower externalities. Different meta-regression model specifications are used to test the robustness of significant determinants of non-market values, including different types of hydropower impacts. The explanatory and predictive power of the estimated models is relatively high. Whilst controlling for sample and study characteristics, we find significant evidence for public aversion towards deteriorations of landscape, vegetation and wildlife caused by hydropower projects. There is however only weak evidence of willingness to pay for mitigating these effects. The main positive externality of hydropower generation, the avoidance of greenhouse gas emission, positively influences welfare estimates when combined with the share of hydropower in national energy production. Sensitivity to scope is detected, but not linked to specific externalities or non-market valuation methods.
Valuing water resources in Switzerland using a hedonic price model
In this paper, linear and spatial hedonic price models are applied to the housing market in Switzerland, covering all 26 cantons in the country over the period 2005–2010. Besides structural house, neighborhood and socioeconomic characteristics, we include a wide variety of new environmental characteristics related to water to examine their role in explaining variation in sales prices. These include water abundance, different types of water bodies, the recreational function of water, and water disamenity. Significant spatial autocorrelation is found in the estimated models, as well as nonlinear effects for distances to the nearest lake and large river. Significant effects are furthermore found for water abundance and the distance to large rivers, but not to small rivers. Although in both linear and spatial models water related variables explain less than 1% of the price variation, the distance to the nearest bathing site has a larger marginal contribution than many neighborhood-related distance variables. The housing market shows to differentiate between different water related resources in terms of relative contribution to house prices, which could help the housing development industry make more geographically targeted planning activities.
van Dijk, D.; Siber, R.; Brouwer, R.; Logar, I.; Sanadgol, D. (2016) Valuing water resources in Switzerland using a hedonic price model, Water Resources Research, 52(5), 3510-3526, doi:10.1002/2015WR017534, Institutional Repository
Wind power externalities: a meta-analysis
This study presents the first quantitative meta-analysis of the non-market valuation literature on the external effects associated with wind power production. A data set of 60 observations drawn from 32 studies is constructed. The relative economic values of different types of externalities as well as the impact of various methodological and sample characteristics on welfare estimates are examined. The results indicate a significant effect of visual externalities on welfare estimates in both directions, i.e., a positive effect of visual improvements and a negative effect of deteriorations. This finding corresponds to predictions of the importance of visual impacts in the social science literature. External effects of wind power on biodiversity (mainly birds) do not affect welfare estimates. Indirect externalities caused by conventional sources of electricity that can be avoided by wind power, such as a the reduction of air pollution, do neither have a significant impact on welfare measures. Methodologically, we find substantial but inelastic income effects and, for choice experiments, clear evidence of sensitivity to scope. From a policy point of view, our results suggest that a policy mix combining a promotion of wind turbines with another green policy facilitates expansion of wind energy.
Pipe replacement in a water supply network: coordinated versus uncoordinated replacement and budget effects
Operators of underground water supply networks are challenged with pipe replacement decisions, because pipes are subject to increased failure rates as they age and financial resources are often limited. We study the optimal replacement time and optimal number of pipe replacements such that the expected failure cost and replacement cost are minimized, while satisfying a budget constraint and incorporating uncoordinated and coordinated replacement. Results show that coordinated replacement is economically preferred to uncoordinated replacement. It depends on the size of the budget whether the increase in the number of pipe replacements is sufficient to reduce the total expected failure cost.
Van Dijk, D.; Hendrix, E. M. T. (2016) Pipe replacement in a water supply network: coordinated versus uncoordinated replacement and budget effects, Informatica, 27(2), 387-403, doi:10.15388/Informatica.2016.91, Institutional Repository
Public willingness to pay for alternative management regimes of remote marine protected areas in the North Sea
Despite increasing attention paid to the value of marine resources, in particular marine protected areas (MPAs), their economic valuation focuses mainly on use values of ecosystem services such as fishery and tourism. Furthermore, most MPA related studies are carried out for coastal ecosystems, especially tropical coral reefs. The valuation of remote marine ecosystems is rare. The main objective of this paper is to estimate public willingness to pay (WTP) for alternative management regimes of a network of offshore MPAs in the North Sea under the Marine Strategy Framework Directive (MSFD). In a baseline valuation study carried out just before the adoption of the MSFD, beach visitors and a random sample of coastal and non-coastal residents were asked for their preferences for two alternative management options of three remote, ecologically sensitive areas with multiple use conflicts. Despite the lack of public awareness and familiarity with the offshore marine areas, a majority of 70% is willing to pay extra tax for their protection. Using a conservative value elicitation procedure, Dutch households are willing to pay on average maximum 0.25% of their annual disposable income to ban access and economic use. This serves as an indicator of what a network of remote MPAs in the MSFD is allowed to cost according to the Dutch tax payer.
Brouwer, R.; Brouwer, S.; Eleveld, M. A.; Verbraak, M.; Wagtendonk, A. J.; van der Woerd, H. J. (2016) Public willingness to pay for alternative management regimes of remote marine protected areas in the North Sea, Marine Policy, 68, 195-204, doi:10.1016/j.marpol.2016.03.001, Institutional Repository
Exploring the scope for transboundary collaboration in the Blue Nile river basin: downstream willingness to pay for upstream land use changes to improve irrigation water supply
In this study we model the preferences and willingness to pay (WTP) of downstream farmers in one of the largest irrigation schemes worldwide in Sudan for improved irrigation water supply through transboundary collaboration with farmers upstream in Ethiopia. In a choice experiment, Sudanese farmers are asked to pay an increase in existing irrigation fees to secure future irrigation water availability by either enhancing the removal of sediments in their local irrigation channels or compensating farmers in the Ethiopian highlands for taking soil conservation measures to prevent land degradation and soil erosion. Although Sudanese farmers downstream do not feel very connected to farmers upstream in Ethiopia, we find a high degree of trust in international cooperation and a positive WTP for improved irrigation water supply and water use efficiency through transboundary collaboration.
Tesfaye, A.; Brouwer, R. (2016) Exploring the scope for transboundary collaboration in the Blue Nile river basin: downstream willingness to pay for upstream land use changes to improve irrigation water supply, Environment and Development Economics, 21(2), 180-204, doi:10.1017/S1355770X15000182, Institutional Repository
array(6 items)0 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=7841, pid=124)originalId => protected7841 (integer)
authors => protected'Brouwer, R.; Job, F. C.; van der Kroon, B.; Johnston,&nb sp;R.' (81 chars)
title => protected'Comparing willingness to pay for improved drinking-water quality using state d preference methods in rural and urban Kenya' (121 chars)
journal => protected'Applied Health Economics and Health Policy' (42 chars)
year => protected2015 (integer)
volume => protected13 (integer)
issue => protected'1' (1 chars)
startpage => protected'81' (2 chars)
otherpage => protected'94' (2 chars)
categories => protected'' (0 chars)
description => protected'<i>Background</i>. Access to safe drinking water has been on the global agen da for decades. The key to safe drinking water is found in household water t reatment and safe storage systems. <BR/> <i>Objective</i>. In this study, we assessed rural and urban household demand for a new gravity-driven membrane (GDM) drinking-water filter.<BR/> <i>Methods</i>. A choice experiment (CE) was used to assess the value attached to the characteristics of a new GDM fi lter before marketing in urban and rural Kenya. The CE was followed by a con tingent valuation (CV) question. Differences in willingness to pay (WTP) for the same filter design were tested between methods, as well as urban and ru ral samples.<BR/> <i>Results</i>. The CV follow-up approach produces more co nservative and statistically more efficient WTP values than the CE, with onl y limited indications of anchoring. The effect of the new filter technology on children with diarrhea is among the most important drivers behind choice behavior and WTP in both areas. The urban sample is willing to pay more in a bsolute terms than the rural sample irrespective of the valuation method. Ru ral households are more price sensitive, and willing to pay more in relative terms compared with disposable household income.<BR/> <i>Conclusion</i>. A differentiated marketing strategy across rural and urban areas is expected t o increase uptake and diffusion of the new filter technology.' (1429 chars)
serialnumber => protected'1175-5652' (9 chars)
doi => protected'10.1007/s40258-014-0137-2' (25 chars)
uid => protected7841 (integer)
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_versionedUid => protected7841 (integer)modifiedpid => protected124 (integer)1 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=8096, pid=124)originalId => protected8096 (integer)
authors => protected'Gsottbauer, E.; Logar, I.; van den Bergh, J.' (59 chars)
title => protected'Towards a fair, constructive and consistent criticism of all valuation langu ages: comment on Kallis et al. (2013)' (113 chars)
journal => protected'Ecological Economics' (20 chars)
year => protected2015 (integer)
volume => protected112 (integer)
issue => protected'' (0 chars)
startpage => protected'164' (3 chars)
otherpage => protected'169' (3 chars)
categories => protected'commodification; cost–benefit analysis; environmental policy; evaluation c riteria; monetary valuation; valuation languages' (124 chars)
description => protected'We provide critical notes to the paper by Kallis et al. (2013) on monetary v aluation. We evaluate the four criteria they propose for assessing valuation studies. We argue that no clear distinction is made between monetary valuat ion and pricing instruments. The selected criteria are more relevant to asse ssing policy than monetary valuation. The examples provided are not represen tative of the diversity of valuation studies encountered in the literature. Moreover, no clear examples are provided of where valuation and associated c ost–benefit analysis of environmental policy go wrong. We plea for a more fair, constructive and consistent criticism of all "valuation languages" and offer relevant issues for consideration.' (725 chars)
serialnumber => protected'0921-8009' (9 chars)
doi => protected'10.1016/j.ecolecon.2014.12.014' (30 chars)
uid => protected8096 (integer)
_localizedUid => protected8096 (integer)modified_languageUid => protectedNULL
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authors => protected'Brouwer, R.; Martin-Ortega, J.; Dekker, T.; Sardonini, L .; Andreu, J.; Kontogianni, A.; Skourtos, M.; Raggi, M.; Viaggi, D.; Pulido-Velazquez, M.; Rolfe, J.; Windle, J.' (228 chars)
title => protected'Improving value transfer through socio-economic adjustments in a multicountr y choice experiment of water conservation alternatives' (130 chars)
journal => protected'Australian Journal of Agricultural and Resource Economics' (57 chars)
year => protected2015 (integer)
volume => protected59 (integer)
issue => protected'3' (1 chars)
startpage => protected'458' (3 chars)
otherpage => protected'478' (3 chars)
categories => protected'benefits transfer; choice experiment; preference heterogeneity; water conser vation' (82 chars)
description => protected'This study tests the transferability of the nonmarket values of water conser vation for domestic and environmental purposes across three south European c ountries and Australia applying a common choice experiment design. Different approaches are followed to test the transferability of the estimated values , aiming to minimise transfer errors for use in policy analysis, comparing b oth single- and multicountry transfers, with and without socio-economic adju stments. Within Europe, significant differences are found between implicit p rices for environmental water use, but not for domestic water use. In the Au stralian case study, alleviating restrictions on domestic water use has no s ignificant value. Pooling the three European samples improves the transferab ility of the environmental flow values between Europe and Australia. Results show that a reduction in transfer error is achieved when controlling for un observed and observed preference heterogeneity in the single- and multicount ry transfers, providing additional support for the superiority of socio-econ omic adjustment procedures in value transfer.' (1109 chars)
serialnumber => protected'1364-985X' (9 chars)
doi => protected'10.1111/1467-8489.12099' (23 chars)
uid => protected8166 (integer)
_localizedUid => protected8166 (integer)modified_languageUid => protectedNULL
_versionedUid => protected8166 (integer)modifiedpid => protected124 (integer)3 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=8440, pid=124)originalId => protected8440 (integer)
authors => protected'Kahsay, T. N.; Kuik, O.; Brouwer, R.; van der Zaag,  ;P.' (79 chars)
title => protected'Estimation of the transboundary economic impacts of the Grand Ethiopia Renai ssance Dam: a computable general equilibrium analysis' (129 chars)
journal => protected'Water Resources and Economics' (29 chars)
year => protected2015 (integer)
volume => protected10 (integer)
issue => protected'' (0 chars)
startpage => protected'14' (2 chars)
otherpage => protected'30' (2 chars)
categories => protected'computable general equilibrium modeling; Grand Ethiopian Renaissance Dam; di rect and indirect economic effects; Eastern Nile countries' (134 chars)
description => protected'Employing a multi-region multi-sector computable general equilibrium (CGE) m odeling framework, this study estimates the direct and indirect economic imp acts of the Grand Ethiopian Renaissance Dam (GERD) on the Eastern Nile econo mies. The study contributes to the existing literature by evaluating the imp act of the dam under three different climatic and hydrological scenarios, ta king into account both the transient GERD impounding phase and the long-term operation phase in a global CGE setting. The results demonstrate the signif icance of the GERD in generating basin-wide economic benefits and improving welfare in the Eastern Nile basin. During the impounding phase, the GERD ben efits mainly Ethiopia and to some extent Sudan. GERD impounding inflicts eco nomic costs, however, on Egypt, especially if it occurs during a sequence of dry years, and depending on the level of water withdrawal in Sudan. The neg ative effects of the GERD on Egypt׳s economy are reversed when the GERD bec omes operational. In that case, the GERD generates substantial economic bene fits and enhances economic growth and welfare in all the Eastern Nile countr ies. Instituting a basin-wide power trade scheme would substantially boost E gypt׳s economy and thereby further increase the economic value of the dam.' (1291 chars)
serialnumber => protected'2212-4284' (9 chars)
doi => protected'10.1016/j.wre.2015.02.003' (25 chars)
uid => protected8440 (integer)
_localizedUid => protected8440 (integer)modified_languageUid => protectedNULL
_versionedUid => protected8440 (integer)modifiedpid => protected124 (integer)4 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=11899, pid=124)originalId => protected11899 (integer)
authors => protected'Klinglmair, A.; Bliem, M. G.; Brouwer, R.' (61 chars)
title => protected'Exploring the public value of increased hydropower use: a choice experiment study for Austria' (93 chars)
journal => protected'Journal of Environmental Economics and Policy' (45 chars)
year => protected2015 (integer)
volume => protected4 (integer)
issue => protected'3' (1 chars)
startpage => protected'315' (3 chars)
otherpage => protected'336' (3 chars)
categories => protected'choice experiment; hydropower; renewable energy; stated preferences; willing ness to pay' (87 chars)
description => protected'This paper applies a choice experiment to estimate how Austrian households v alue the multiple impacts associated with future hydropower investments. Cle ar evidence was obtained that Austrian households are willing to pay for an expansion of hydropower capacities. More precisely, Austrians are willing to incur extra costs for economic (employment) and environmental (reduced air emissions) benefits related to the generation of electricity from hydroelect ric power, but wish to be compensated for the loss of nature and landscape n ew hydropower plants are associated with. This relation can formally be deno ted as the ‘energy–water trade-off’ imposed by the use of hydropower. Moreover, confirmation of the ‘Not in my backyard’ phenomenon was found, meaning that people prefer the construction of new hydropower stations, but not close to their homes.' (862 chars)
serialnumber => protected'2160-6544' (9 chars)
doi => protected'10.1080/21606544.2015.1018956' (29 chars)
uid => protected11899 (integer)
_localizedUid => protected11899 (integer)modified_languageUid => protectedNULL
_versionedUid => protected11899 (integer)modifiedpid => protected124 (integer)5 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=8438, pid=124)originalId => protected8438 (integer)
authors => protected'Vermaat, J. E.; Wagtendonk, A. J.; Brouwer, R.; She remet, O.; Ansink, E.; Brockhoff, T.; Plug, M.; Hellsten , S.; Aroviita, J.; Tylec, L.; Giełczewski, M.; Kohut,& nbsp;L.; Brabec, K.; Haverkamp, J.; Poppe, M.; Böck, K. ; Coerssen, M.; Segersten, J.; Hering, D.' (360 chars)
title => protected'Assessing the societal benefits of river restoration using the ecosystem ser vices approach' (90 chars)
journal => protected'Hydrobiologia' (13 chars)
year => protected2015 (integer)
volume => protected769 (integer)
issue => protected'1' (1 chars)
startpage => protected'121' (3 chars)
otherpage => protected'135' (3 chars)
categories => protected'nutrient retention; river corridor; wetlands; flood control; biodiversity; e conomic valuation' (93 chars)
description => protected'The success of river restoration was estimated using the ecosystem services approach. In eight pairs of restored–unrestored reaches and floodplains ac ross Europe, we quantified provisioning (agricultural products, wood, reed f or thatching, infiltrated drinking water), regulating (flooding and drainage , nutrient retention, carbon sequestration) and cultural (recreational hunti ng and fishing, kayaking, biodiversity conservation, appreciation of scenic landscapes) services for separate habitats within each reach, and summed the se to annual economic value normalized per reach area. We used locally avail able data and literature, did surveys among inhabitants and visitors, and us ed a range of economic methods (market value, shadow price, replacement cost , avoided damage, willingness-to-pay survey, choice experiment) to provide f inal monetary service estimates. Total ecosystem service value was significa
> test). Removal of one extreme case did not affect this outcome. We analyse d the relation between services delivered and with floodplain and catchment characteristics after reducing these 23 variables to four principal componen ts explaining 80% of the variance. Cultural and regulating services correlat ed positively with human population density, cattle density and agricultural N surplus in the catchment, but not with the fraction of arable land or for est, floodplain slope, mean river discharge or GDP. Our interpretation is th at landscape appreciation and flood risk alleviation are a function of human population density, but not wealth, in areas where dairy farming is the pri me form of agriculture.' (1771 chars)
serialnumber => protected'0018-8158' (9 chars)
doi => protected'10.1007/s10750-015-2482-z' (25 chars)
uid => protected8438 (integer)
_localizedUid => protected8438 (integer)modified_languageUid => protectedNULL
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Comparing willingness to pay for improved drinking-water quality using stated preference methods in rural and urban Kenya
Background. Access to safe drinking water has been on the global agenda for decades. The key to safe drinking water is found in household water treatment and safe storage systems. Objective. In this study, we assessed rural and urban household demand for a new gravity-driven membrane (GDM) drinking-water filter. Methods. A choice experiment (CE) was used to assess the value attached to the characteristics of a new GDM filter before marketing in urban and rural Kenya. The CE was followed by a contingent valuation (CV) question. Differences in willingness to pay (WTP) for the same filter design were tested between methods, as well as urban and rural samples. Results. The CV follow-up approach produces more conservative and statistically more efficient WTP values than the CE, with only limited indications of anchoring. The effect of the new filter technology on children with diarrhea is among the most important drivers behind choice behavior and WTP in both areas. The urban sample is willing to pay more in absolute terms than the rural sample irrespective of the valuation method. Rural households are more price sensitive, and willing to pay more in relative terms compared with disposable household income. Conclusion. A differentiated marketing strategy across rural and urban areas is expected to increase uptake and diffusion of the new filter technology.
Brouwer, R.; Job, F. C.; van der Kroon, B.; Johnston, R. (2015) Comparing willingness to pay for improved drinking-water quality using stated preference methods in rural and urban Kenya, Applied Health Economics and Health Policy, 13(1), 81-94, doi:10.1007/s40258-014-0137-2, Institutional Repository
Towards a fair, constructive and consistent criticism of all valuation languages: comment on Kallis et al. (2013)
We provide critical notes to the paper by Kallis et al. (2013) on monetary valuation. We evaluate the four criteria they propose for assessing valuation studies. We argue that no clear distinction is made between monetary valuation and pricing instruments. The selected criteria are more relevant to assessing policy than monetary valuation. The examples provided are not representative of the diversity of valuation studies encountered in the literature. Moreover, no clear examples are provided of where valuation and associated cost–benefit analysis of environmental policy go wrong. We plea for a more fair, constructive and consistent criticism of all "valuation languages" and offer relevant issues for consideration.
Gsottbauer, E.; Logar, I.; van den Bergh, J. (2015) Towards a fair, constructive and consistent criticism of all valuation languages: comment on Kallis et al. (2013), Ecological Economics, 112, 164-169, doi:10.1016/j.ecolecon.2014.12.014, Institutional Repository
Improving value transfer through socio-economic adjustments in a multicountry choice experiment of water conservation alternatives
This study tests the transferability of the nonmarket values of water conservation for domestic and environmental purposes across three south European countries and Australia applying a common choice experiment design. Different approaches are followed to test the transferability of the estimated values, aiming to minimise transfer errors for use in policy analysis, comparing both single- and multicountry transfers, with and without socio-economic adjustments. Within Europe, significant differences are found between implicit prices for environmental water use, but not for domestic water use. In the Australian case study, alleviating restrictions on domestic water use has no significant value. Pooling the three European samples improves the transferability of the environmental flow values between Europe and Australia. Results show that a reduction in transfer error is achieved when controlling for unobserved and observed preference heterogeneity in the single- and multicountry transfers, providing additional support for the superiority of socio-economic adjustment procedures in value transfer.
Brouwer, R.; Martin-Ortega, J.; Dekker, T.; Sardonini, L.; Andreu, J.; Kontogianni, A.; Skourtos, M.; Raggi, M.; Viaggi, D.; Pulido-Velazquez, M.; Rolfe, J.; Windle, J. (2015) Improving value transfer through socio-economic adjustments in a multicountry choice experiment of water conservation alternatives, Australian Journal of Agricultural and Resource Economics, 59(3), 458-478, doi:10.1111/1467-8489.12099, Institutional Repository
Estimation of the transboundary economic impacts of the Grand Ethiopia Renaissance Dam: a computable general equilibrium analysis
Employing a multi-region multi-sector computable general equilibrium (CGE) modeling framework, this study estimates the direct and indirect economic impacts of the Grand Ethiopian Renaissance Dam (GERD) on the Eastern Nile economies. The study contributes to the existing literature by evaluating the impact of the dam under three different climatic and hydrological scenarios, taking into account both the transient GERD impounding phase and the long-term operation phase in a global CGE setting. The results demonstrate the significance of the GERD in generating basin-wide economic benefits and improving welfare in the Eastern Nile basin. During the impounding phase, the GERD benefits mainly Ethiopia and to some extent Sudan. GERD impounding inflicts economic costs, however, on Egypt, especially if it occurs during a sequence of dry years, and depending on the level of water withdrawal in Sudan. The negative effects of the GERD on Egypt׳s economy are reversed when the GERD becomes operational. In that case, the GERD generates substantial economic benefits and enhances economic growth and welfare in all the Eastern Nile countries. Instituting a basin-wide power trade scheme would substantially boost Egypt׳s economy and thereby further increase the economic value of the dam.
Kahsay, T. N.; Kuik, O.; Brouwer, R.; van der Zaag, P. (2015) Estimation of the transboundary economic impacts of the Grand Ethiopia Renaissance Dam: a computable general equilibrium analysis, Water Resources and Economics, 10, 14-30, doi:10.1016/j.wre.2015.02.003, Institutional Repository
Exploring the public value of increased hydropower use: a choice experiment study for Austria
This paper applies a choice experiment to estimate how Austrian households value the multiple impacts associated with future hydropower investments. Clear evidence was obtained that Austrian households are willing to pay for an expansion of hydropower capacities. More precisely, Austrians are willing to incur extra costs for economic (employment) and environmental (reduced air emissions) benefits related to the generation of electricity from hydroelectric power, but wish to be compensated for the loss of nature and landscape new hydropower plants are associated with. This relation can formally be denoted as the ‘energy–water trade-off’ imposed by the use of hydropower. Moreover, confirmation of the ‘Not in my backyard’ phenomenon was found, meaning that people prefer the construction of new hydropower stations, but not close to their homes.
Klinglmair, A.; Bliem, M. G.; Brouwer, R. (2015) Exploring the public value of increased hydropower use: a choice experiment study for Austria, Journal of Environmental Economics and Policy, 4(3), 315-336, doi:10.1080/21606544.2015.1018956, Institutional Repository
Assessing the societal benefits of river restoration using the ecosystem services approach
The success of river restoration was estimated using the ecosystem services approach. In eight pairs of restored–unrestored reaches and floodplains across Europe, we quantified provisioning (agricultural products, wood, reed for thatching, infiltrated drinking water), regulating (flooding and drainage, nutrient retention, carbon sequestration) and cultural (recreational hunting and fishing, kayaking, biodiversity conservation, appreciation of scenic landscapes) services for separate habitats within each reach, and summed these to annual economic value normalized per reach area. We used locally available data and literature, did surveys among inhabitants and visitors, and used a range of economic methods (market value, shadow price, replacement cost, avoided damage, willingness-to-pay survey, choice experiment) to provide final monetary service estimates. Total ecosystem service value was significantly increased in the restored reaches (difference 1400 ± 600 € ha–1 year–1; 2500 – 1100, p = 0.03, paired t test). Removal of one extreme case did not affect this outcome. We analysed the relation between services delivered and with floodplain and catchment characteristics after reducing these 23 variables to four principal components explaining 80% of the variance. Cultural and regulating services correlated positively with human population density, cattle density and agricultural N surplus in the catchment, but not with the fraction of arable land or forest, floodplain slope, mean river discharge or GDP. Our interpretation is that landscape appreciation and flood risk alleviation are a function of human population density, but not wealth, in areas where dairy farming is the prime form of agriculture.
Vermaat, J. E.; Wagtendonk, A. J.; Brouwer, R.; Sheremet, O.; Ansink, E.; Brockhoff, T.; Plug, M.; Hellsten, S.; Aroviita, J.; Tylec, L.; Giełczewski, M.; Kohut, L.; Brabec, K.; Haverkamp, J.; Poppe, M.; Böck, K.; Coerssen, M.; Segersten, J.; Hering, D. (2015) Assessing the societal benefits of river restoration using the ecosystem services approach, Hydrobiologia, 769(1), 121-135, doi:10.1007/s10750-015-2482-z, Institutional Repository
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authors => protected'Logar, I.; Brouwer, R.; Maurer, M.; Ort, C.' (63 chars)
title => protected'Cost-benefit analysis of the Swiss national policy on reducing micropollutan ts in treated wastewater' (100 chars)
journal => protected'Environmental Science and Technology' (36 chars)
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description => protected'Contamination of freshwater with micropollutants (MPs) is a growing concern worldwide. Even at very low concentrations, MPs can have adverse effects on aquatic ecosystems and possibly also on human health. Switzerland is one of the first countries to start implementing a national policy to reduce MPs in the effluents of municipal sewage treatment plants (STPs). This paper estim ates the benefits of upgrading STPs based on public’s stated preferences. To assess public demand for the reduction of the environmental and health ri sks of MPs, we conducted a choice experiment in a national online survey. Th e results indicate that the average willingness to pay per household is CHF 100 (US$ 73) annually for reducing the potential environmental risk of MPs t o a low level. These benefits, aggregated over households in the catchment o f the STPs to be upgraded, generate a total annual economic value of CHF 155 million (US$ 113 million). This compares with estimated annual costs for up grading 123 STPs of CHF 133 million (US$ 97 million) or CHF 86 (US$ 63) per household connected to these STPs. Hence, a cost-benefit analysis justifies the investment decision from an economic point of view and supports the impl ementation of the national policy in the ongoing political discussion.' (1286 chars)
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authors => protected'Logar, I.; van den Bergh, J. C. J. M.' (62 chars)
title => protected'Economic valuation of preventing beach erosion: comparing existing and non-e xisting beach markets with stated and revealed preferences' (134 chars)
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categories => protected'contingent valuation; Croatia; entrance fees; stated and revealed preference s; travel cost method' (97 chars)
description => protected'Predicted climate change is likely to increase beach erosion in the future, inducing higher costs of beach maintenance. Hence, additional funds for thei r protection will be required. We examine the willingness to pay (WTP) of be ach visitors for preventing beach erosion in the form of daily beach entranc e fees in Crikvenica, Croatia, by applying the contingent valuation method. This is the first beach valuation study for this country in transition which has emerged as an important Mediterranean tourist destination. The novelty of our study is that it compares WTP estimates for an existing and a non-exi sting beach market. This is done by conducting a survey at the beach where a n entrance fee is already levied and at the nearest open-access beach. Based on the initial (follow-up) valuation question, the stated WTP per adult per day for avoiding beach erosion equals €1.69 (€1.26) for the paid beach and €2.08 (€1.84) for the free beach. In addition, the travel cost metho d is employed. It reveals that consumer surpluses for visiting the paid and the free beach amount to €2.57 and €1.74, respectively.' (1123 chars)
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authors => protected'Brouwer, R.; Tinh, B. D.; Tuan, T. H.; Magnussen,&n bsp;K.; Navrud, S.' (99 chars)
title => protected'Modeling demand for catastrophic flood risk insurance in coastal zones in Vi etnam using choice experiments' (106 chars)
journal => protected'Environment and Development Economics' (37 chars)
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description => protected'In a choice experiment, households in Vietnam are offered flood insurance to mitigate increasing catastrophic flood risks due to climate change. Partici pants are asked to choose their most preferred insurance policy given expect ed future flood and mortality risks, insurance cover and associated insuranc e premiums. Although not affordable to everyone, there exists substantial de mand for flood insurance. Insurance demand is spatially differentiated, non- linear in flood probabilities and mortality risks, and subject to significan t preference heterogeneity. Since respondents are unfamiliar with the concep t of flood insurance and education levels are low, choice consistency tests were conducted. These show that choice consistency depends on a combination of respondent characteristics, such as gender and education level, and exper imental design characteristics.' (867 chars)
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authors => protected'Khan, N. I.; Brouwer, R.; Yang, H.' (54 chars)
title => protected'Household's willingness to pay for arsenic safe drinking water in Bangladesh' (76 chars)
journal => protected'Journal of Environmental Management' (35 chars)
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categories => protected'contingent valuation; arsenic; drinking water; willingness to pay; health ri sks; Bangladesh' (91 chars)
description => protected'This study examines willingness to pay (WTP) in Bangladesh for arsenic (As) safe drinking water across different As-risk zones, applying a double bound discrete choice value elicitation approach. The study aims to provide a robu st estimate of the benefits of As safe drinking water supply, which is compa red to the results from a similar study published almost 10 years ago using a single bound estimation procedure. Tests show that the double bound valuat ion design does not suffer from anchoring or incentive incompatibility effec ts. Health risk awareness levels are high and households are willing to pay on average about 5 percent of their disposable average annual household inco me for As safe drinking water. Important factors influencing WTP include the bid amount to construct communal deep tubewell for As safe water supply, th e risk zone where respondents live, household income, water consumption, awa reness of water source contamination, whether household members are affected by As contamination, and whether they already take mitigation measures.' (1060 chars)
serialnumber => protected'0301-4797' (9 chars)
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authors => protected'Alcon, F.; Tapsuwand, S.; Brouwer, R.; de Miguel, M.&nbs p;D.,' (81 chars)
title => protected'Adoption of irrigation water policies to guarantee water supply: a choice ex periment' (84 chars)
journal => protected'Environmental Science and Policy' (32 chars)
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categories => protected'irrigation water; Spain; choice experiment; water policy' (56 chars)
description => protected'More efficient and sustainable use of water is increasingly becoming an urge ncy in drought prone parts of the world. In particular, in water scarce regi ons such as the Mediterranean, water supply is expected to become more uncer tain because of climate change. Consequently, pro-active policy initiatives are proposed to increase supply reliability. Local context is important when the effectiveness of policies is assessed. The aim of this paper is to eval uate farmers' acceptance of policy strategies to increase water supply relia bility in the Segura, a water scarce river basin in the south-east of Spain. Results from a choice experiment suggest that farmers are willing to pay tw ice as much as their current irrigation water price to ensure water supply r eliability through government supply guaranteed programs. However, they are averse to any institutional changes that might assist the government to achi eve increased water supply.' (939 chars)
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authors => protected'van Dijk, D.; Hendrix, E. M. T.; Haijema, R.; Groen eveld, R. A.; van Ierland, E. C.' (128 chars)
title => protected'On solving a bi-level stochastic dynamic programming model for analyzing fis heries policies: fishermen behavior and optimal fish quota' (134 chars)
journal => protected'Ecological Modelling' (20 chars)
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categories => protected'stochastic dynamic programming; value function iteration; fisheries manageme nt; bi-level' (88 chars)
description => protected'Stochastic dynamic programming (SDP) is a useful tool for analyzing policy q uestions in fisheries management. In order to understand and reproduce solut ion procedures such as value function iteration, an analytic elaboration of the problem and model characteristics is required. Because of the increased use of numerical techniques, our aim is to improve the understanding of math ematical properties of the solution procedure and to give more insight into their practical implementation by means of a specific case that uses value f unction iteration. We provide an analytic description of model characteristi cs and analyze the solution procedure of a bi-level SDP model to study fishe ries policies. At the first level, a policy maker decides on the fish quota to be imposed, keeping in mind fish stock dynamics, capital stock dynamics, long-term resource rents and anticipating fishermen behavior. At the second level, fishermen reveal short-term behavior by reacting on this quota and on current states of fish stock and capital stock by deciding on their investm ents and fishing effort. An analysis of the behavior of the model is given a nd a method is elaborated to obtain optimum strategies based on value functi on iteration. Bi-level decision making enables us to present the model in an understandable manner, and serves as a basis for extension to more complex settings.' (1377 chars)
serialnumber => protected'0304-3800' (9 chars)
doi => protected'10.1016/j.ecolmodel.2013.09.015' (31 chars)
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Cost-benefit analysis of the Swiss national policy on reducing micropollutants in treated wastewater
Contamination of freshwater with micropollutants (MPs) is a growing concern worldwide. Even at very low concentrations, MPs can have adverse effects on aquatic ecosystems and possibly also on human health. Switzerland is one of the first countries to start implementing a national policy to reduce MPs in the effluents of municipal sewage treatment plants (STPs). This paper estimates the benefits of upgrading STPs based on public’s stated preferences. To assess public demand for the reduction of the environmental and health risks of MPs, we conducted a choice experiment in a national online survey. The results indicate that the average willingness to pay per household is CHF 100 (US$ 73) annually for reducing the potential environmental risk of MPs to a low level. These benefits, aggregated over households in the catchment of the STPs to be upgraded, generate a total annual economic value of CHF 155 million (US$ 113 million). This compares with estimated annual costs for upgrading 123 STPs of CHF 133 million (US$ 97 million) or CHF 86 (US$ 63) per household connected to these STPs. Hence, a cost-benefit analysis justifies the investment decision from an economic point of view and supports the implementation of the national policy in the ongoing political discussion.
Logar, I.; Brouwer, R.; Maurer, M.; Ort, C. (2014) Cost-benefit analysis of the Swiss national policy on reducing micropollutants in treated wastewater, Environmental Science and Technology, 48(21), 12500-12508, doi:10.1021/es502338j, Institutional Repository
Economic valuation of preventing beach erosion: comparing existing and non-existing beach markets with stated and revealed preferences
Predicted climate change is likely to increase beach erosion in the future, inducing higher costs of beach maintenance. Hence, additional funds for their protection will be required. We examine the willingness to pay (WTP) of beach visitors for preventing beach erosion in the form of daily beach entrance fees in Crikvenica, Croatia, by applying the contingent valuation method. This is the first beach valuation study for this country in transition which has emerged as an important Mediterranean tourist destination. The novelty of our study is that it compares WTP estimates for an existing and a non-existing beach market. This is done by conducting a survey at the beach where an entrance fee is already levied and at the nearest open-access beach. Based on the initial (follow-up) valuation question, the stated WTP per adult per day for avoiding beach erosion equals €1.69 (€1.26) for the paid beach and €2.08 (€1.84) for the free beach. In addition, the travel cost method is employed. It reveals that consumer surpluses for visiting the paid and the free beach amount to €2.57 and €1.74, respectively.
Logar, I.; van den Bergh, J. C. J. M. (2014) Economic valuation of preventing beach erosion: comparing existing and non-existing beach markets with stated and revealed preferences, Journal of Environmental Economics and Policy, 3(1), 46-66, doi:10.1080/21606544.2013.863742, Institutional Repository
Modeling demand for catastrophic flood risk insurance in coastal zones in Vietnam using choice experiments
In a choice experiment, households in Vietnam are offered flood insurance to mitigate increasing catastrophic flood risks due to climate change. Participants are asked to choose their most preferred insurance policy given expected future flood and mortality risks, insurance cover and associated insurance premiums. Although not affordable to everyone, there exists substantial demand for flood insurance. Insurance demand is spatially differentiated, non-linear in flood probabilities and mortality risks, and subject to significant preference heterogeneity. Since respondents are unfamiliar with the concept of flood insurance and education levels are low, choice consistency tests were conducted. These show that choice consistency depends on a combination of respondent characteristics, such as gender and education level, and experimental design characteristics.
Brouwer, R.; Tinh, B. D.; Tuan, T. H.; Magnussen, K.; Navrud, S. (2014) Modeling demand for catastrophic flood risk insurance in coastal zones in Vietnam using choice experiments, Environment and Development Economics, 19(2), 228-249, doi:10.1017/S1355770X13000405, Institutional Repository
Household's willingness to pay for arsenic safe drinking water in Bangladesh
This study examines willingness to pay (WTP) in Bangladesh for arsenic (As) safe drinking water across different As-risk zones, applying a double bound discrete choice value elicitation approach. The study aims to provide a robust estimate of the benefits of As safe drinking water supply, which is compared to the results from a similar study published almost 10 years ago using a single bound estimation procedure. Tests show that the double bound valuation design does not suffer from anchoring or incentive incompatibility effects. Health risk awareness levels are high and households are willing to pay on average about 5 percent of their disposable average annual household income for As safe drinking water. Important factors influencing WTP include the bid amount to construct communal deep tubewell for As safe water supply, the risk zone where respondents live, household income, water consumption, awareness of water source contamination, whether household members are affected by As contamination, and whether they already take mitigation measures.
Khan, N. I.; Brouwer, R.; Yang, H. (2014) Household's willingness to pay for arsenic safe drinking water in Bangladesh, Journal of Environmental Management, 143, 151-161, doi:10.1016/j.jenvman.2014.04.018, Institutional Repository
Adoption of irrigation water policies to guarantee water supply: a choice experiment
More efficient and sustainable use of water is increasingly becoming an urgency in drought prone parts of the world. In particular, in water scarce regions such as the Mediterranean, water supply is expected to become more uncertain because of climate change. Consequently, pro-active policy initiatives are proposed to increase supply reliability. Local context is important when the effectiveness of policies is assessed. The aim of this paper is to evaluate farmers' acceptance of policy strategies to increase water supply reliability in the Segura, a water scarce river basin in the south-east of Spain. Results from a choice experiment suggest that farmers are willing to pay twice as much as their current irrigation water price to ensure water supply reliability through government supply guaranteed programs. However, they are averse to any institutional changes that might assist the government to achieve increased water supply.
Alcon, F.; Tapsuwand, S.; Brouwer, R.; de Miguel, M. D., (2014) Adoption of irrigation water policies to guarantee water supply: a choice experiment, Environmental Science and Policy, 44, 226-236, doi:10.1016/j.envsci.2014.08.012, Institutional Repository
On solving a bi-level stochastic dynamic programming model for analyzing fisheries policies: fishermen behavior and optimal fish quota
Stochastic dynamic programming (SDP) is a useful tool for analyzing policy questions in fisheries management. In order to understand and reproduce solution procedures such as value function iteration, an analytic elaboration of the problem and model characteristics is required. Because of the increased use of numerical techniques, our aim is to improve the understanding of mathematical properties of the solution procedure and to give more insight into their practical implementation by means of a specific case that uses value function iteration. We provide an analytic description of model characteristics and analyze the solution procedure of a bi-level SDP model to study fisheries policies. At the first level, a policy maker decides on the fish quota to be imposed, keeping in mind fish stock dynamics, capital stock dynamics, long-term resource rents and anticipating fishermen behavior. At the second level, fishermen reveal short-term behavior by reacting on this quota and on current states of fish stock and capital stock by deciding on their investments and fishing effort. An analysis of the behavior of the model is given and a method is elaborated to obtain optimum strategies based on value function iteration. Bi-level decision making enables us to present the model in an understandable manner, and serves as a basis for extension to more complex settings.
van Dijk, D.; Hendrix, E. M. T.; Haijema, R.; Groeneveld, R. A.; van Ierland, E. C. (2014) On solving a bi-level stochastic dynamic programming model for analyzing fisheries policies: fishermen behavior and optimal fish quota, Ecological Modelling, 272, 68-75, doi:10.1016/j.ecolmodel.2013.09.015, Institutional Repository
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title => protected'Methods to assess costs of drought damages and policies for drought mitigati on and adaptation: review and recommendations' (121 chars)
journal => protected'Water Resources Management' (26 chars)
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categories => protected'droughts; cost assessment; market and non-market valuation methods; natural hazards; extreme events; climate change' (115 chars)
description => protected'This article examines available methods for assessing all types of drought c osts, including both damage costs and costs arising from adopting policy mea sures to encourage mitigation of, and adaptation to, droughts. It first disc usses damage costs, distinguishing between direct, indirect and non-market c osts. Then it examines the suitability of existing methods for estimating dr ought costs in different economic sectors, their underlying theoretical assu mptions, complementarity between different methods, and conditions relevant for their application. The latter include precision, ability to deal with fu ture climate change risks, data needs and availability, and required financi al and human resources. The article further considers potential policies for drought mitigation and adaptation and different cost types associated with them. It ends with providing recommendations for good practices regarding th e use of methods as well as drought mitigation and adaptation policies.' (983 chars)
serialnumber => protected'0920-4741' (9 chars)
doi => protected'10.1007/s11269-012-0119-9' (25 chars)
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authors => protected'Meyer, V.; Schwarze, R.; Becker, N.; Markantonis, V.; va n den Bergh, J. C. J. M.; Bouwer, L. M.; Bubec k, P.; Ciavola, P.; Genovese, E.; Green, C.; Hallegatte, S.; Kreibich, H.; Lequeux, Q.; Logar, I.; Papyrakis,&nb sp;E.; Pfurtscheller, C.; Poussin, J.; Przyluski, V.; Thieken , A. H.; Viavattene, C.' (418 chars)
title => protected'Assessing the costs of natural hazards - state of the art and the way forwar d' (77 chars)
journal => protected'In: Quevauviller, P. (Eds.), Hydrometeorological hazards. Interfacing s cience and policy' (93 chars)
year => protected2015 (integer)
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description => protected'The costs of natural hazards around the world are rising. While the number o f events reported in the last 10 years has decreased slightly, the number of affected people and their related costs is increasing, indicating also an a ugmented exposure and vulnerability of humankind to natural hazards (see Fig ures 4.1.1 and 4.1.2, EM-DAT 2013, IPCC 2012). Some outstanding events in th e last decade in terms of their economic damage were, for example, the Tsuna mi in Japan in 2011 with damages of around US$ 210 billion, Hurricane Katrin a in 2005 (US$125 billion), the Wenchuan earthquake in China in 2008 (US$85 billion), the floods in Thailand in 2011 (US$40 billion) and the drought in the US in 2012 which caused damage of more than US$20 billion (EM-DAT 2013, Munich Re, 2006, Munich Re, 2012, Munich Re, 2013). [...]' (817 chars)
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doi => protected'10.1002/9781118629567.ch4a' (26 chars)
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Methods to assess costs of drought damages and policies for drought mitigation and adaptation: review and recommendations
This article examines available methods for assessing all types of drought costs, including both damage costs and costs arising from adopting policy measures to encourage mitigation of, and adaptation to, droughts. It first discusses damage costs, distinguishing between direct, indirect and non-market costs. Then it examines the suitability of existing methods for estimating drought costs in different economic sectors, their underlying theoretical assumptions, complementarity between different methods, and conditions relevant for their application. The latter include precision, ability to deal with future climate change risks, data needs and availability, and required financial and human resources. The article further considers potential policies for drought mitigation and adaptation and different cost types associated with them. It ends with providing recommendations for good practices regarding the use of methods as well as drought mitigation and adaptation policies.
Logar, I.; van den Bergh, J. C. J. M. (2013) Methods to assess costs of drought damages and policies for drought mitigation and adaptation: review and recommendations, Water Resources Management, 27(6), 1707-1720, doi:10.1007/s11269-012-0119-9, Institutional Repository
Assessing the costs of natural hazards - state of the art and the way forward
The costs of natural hazards around the world are rising. While the number of events reported in the last 10 years has decreased slightly, the number of affected people and their related costs is increasing, indicating also an augmented exposure and vulnerability of humankind to natural hazards (see Figures 4.1.1 and 4.1.2, EM-DAT 2013, IPCC 2012). Some outstanding events in the last decade in terms of their economic damage were, for example, the Tsunami in Japan in 2011 with damages of around US$ 210 billion, Hurricane Katrina in 2005 (US$125 billion), the Wenchuan earthquake in China in 2008 (US$85 billion), the floods in Thailand in 2011 (US$40 billion) and the drought in the US in 2012 which caused damage of more than US$20 billion (EM-DAT 2013, Munich Re, 2006, Munich Re, 2012, Munich Re, 2013). [...]
Meyer, V.; Schwarze, R.; Becker, N.; Markantonis, V.; van den Bergh, J. C. J. M.; Bouwer, L. M.; Bubeck, P.; Ciavola, P.; Genovese, E.; Green, C.; Hallegatte, S.; Kreibich, H.; Lequeux, Q.; Logar, I.; Papyrakis, E.; Pfurtscheller, C.; Poussin, J.; Przyluski, V.; Thieken, A. H.; Viavattene, C. (2015) Assessing the costs of natural hazards - state of the art and the way forward, In: Quevauviller, P. (Eds.), Hydrometeorological hazards. Interfacing science and policy, 255-290, doi:10.1002/9781118629567.ch4a, Institutional Repository