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Sustainable Land-use Practices in European Mountain Regions under Global Change: an Integrated Research Approach Ecology and Society
Huber, Robert; Swiss Federal Research Institute WSL ; robert.huber@wsl.ch; Bugmann, Harald; ETH Zurich; harald.bugmann@env.ethz.ch; Rigling, Andreas; Swiss Federal Research Institute WSL; andreas.rigling@wsl.ch.
This Special Feature on sustainable land-use practices in European mountain regions presents results from the inter- and transdisciplinary research project MOUNTLAND. The goal was to investigate the sensitivity of the provision of ecosystem services to both climatic and land-use changes and to suggest alternative policies and governance structures for mitigating the impact of such changes and enhancing sustainable management practices in mountain regions. The individual articles provide: (1) new scientific findings regarding the impacts of climate and land-use changes on ecosystem processes in three sensitive mountain regions of Switzerland; (2) an assessment of the feedback effects arising from changing socioeconomic and political conditions, land use,...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Climate change; Ecosystem services; Experiments; Interdisciplinary research; Land-use change; Management; Modeling; Transdisciplinary research.
Ano: 2013
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Sustainable Land Use in Mountain Regions Under Global Change: Synthesis Across Scales and Disciplines Ecology and Society
Huber, Robert; Swiss Federal Institute for Forest, Snow and Landscape Research WSL; robert.huber@wsl.ch; Rigling, Andreas; Swiss Federal Institute for Forest, Snow and Landscape Research WSL; andreas.rigling@wsl.ch; Bebi, Peter; WSL Institute for Snow and Avalanche Research SLF; bebi@slf.ch; Brand, Fridolin Simon; Natural and Social Science Interface, Department of Environmental Systems Science, ETH Zurich; fridolin.brand@env.ethz.ch; Briner, Simon; Agri-food and Agri-environmental Economics Group, Department of Environmental Systems Science, ETH Zurich; briners@ethz.ch; Hirschi, Christian; Environmental Policy and Economics, Department of Environmental Systems Science, ETH Zurich; christian.hirschi@env.ethz.ch; Lischke, Heike; Swiss Federal Institute for Forest, Snow and Landscape Research WSL;; Scholz, Roland Werner; Natural and Social Science Interface, Department of Environmental Systems Science, ETH Zurich; roland.scholz@env.ethz.ch; Seidl, Roman; Natural and Social Science Interface, Department of Environmental Systems Science, ETH Zurich; roman.seidl@env.ethz.ch; Walz, Ariane; Potsdam Institute for Climate Impact Research PIK; Institute for Earth and Environmental Science, University of Potsdam;; Zimmermann, Willi; Environmental Policy and Economics, Department of Environmental Systems Science, ETH Zurich;; Bugmann, Harald; Forest Ecology, Department of Environmental Systems Science, ETH Zurich; harald.bugmann@env.ethz.ch.
Mountain regions provide essential ecosystem goods and services (EGS) for both mountain dwellers and people living outside these areas. Global change endangers the capacity of mountain ecosystems to provide key services. The Mountland project focused on three case study regions in the Swiss Alps and aimed to propose land-use practices and alternative policy solutions to ensure the provision of key EGS under climate and land-use changes. We summarized and synthesized the results of the project and provide insights into the ecological, socioeconomic, and political processes relevant for analyzing global change impacts on a European mountain region. In Mountland, an integrative approach was applied, combining methods from economics and the political and...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Adaptive management; Climate change; Ecosystem services; Experiments; Interdisciplinary research; Land-use change; Modeling; Transdisciplinary research.
Ano: 2013
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Rapid responses of pristine marine planktonic communities in experimental approach to diuron and naphthalene (Juan de Nova Island, Western Indian Ocean) ArchiMer
Bouvy, Marc; Dupuy, Christine; Got, Patrice; Domaizon, Isabelle; Carré, Claire; Pagano, Marc; Debroas, Didier; Roques, Cécile; Leboulanger, Christophe.
Planktonic communities from Juan de Nova lagoon were submitted to a single exposure of diuron or naphthalene in triplicate outdoor 40-L mesocosms for 5 days. The study followed the temporal changes of the assemblages by determining abundances and taxonomic level of microbial (heterotrophic prokaryotes, picocyanobacteria, heterotrophic protists and phytoplankton) and metazooplankton communities. Exposure to both contaminants did not result in significant changes in phytoplankton abundances. Microscopic identification demonstrated the dominance of Bacillariophyta (mostly Chaetoceros tenuissimus) accounting for more than 95% of the microalgae detected in all mesocosms. Using 18S rRNA metabarcoding, temporal changes in the proportion of eukaryotic operational...
Tipo: Text Palavras-chave: Contaminant; Taxonomy; Metabarcoding; Plankton; Experiments; Lagoon..
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00681/79348/81853.pdf
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Inverse identification of the bending stiffness of a braided polyethylene twine subject to large deformation: application to the identification of the mesh opening rigidity of fishing nets. ArchiMer
Morvan, Barthelemy; Bles, G; Dumergue, Nicolas; Priour, Daniel.
The evaluation of the mesh opening stiffness of fishing nets is an important issue in assessing the selectivity of trawls. It appeared that a larger bending rigidity of twines decreases the mesh opening and could reduce the escapement of fish. Nevertheless, netting structure is complex. A netting is made up of braided twines made of polyethylene or polyamide. These twines are tied with non-symmetrical knots. Thus, these assemblies develop contact-friction interactions. Moreover, the netting can be subject to large deformation. In this study, we investigate the responses of netting samples to different types of solicitations. Samples are loaded and unloaded with creep and relaxation stages, with different boundary conditions. Then, two models have been...
Tipo: Text Palavras-chave: Numerical model; Experiments; Braided twine; Mesh opening rigidity; Large deformation..
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00348/45899/45581.pdf
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Numerical modelling of mixed-sediment consolidation ArchiMer
Grasso, Florent; Le Hir, Pierre; Bassoullet, Philippe.
Sediment transport modelling in estuarine environments, characterised by cohesive and non-cohesive sediment mixtures, has to consider a time variation of erodibility due to consolidation. Generally, validated by settling column experiments, mud consolidation is now fairly well simulated; however, numerical models still have difficulty to simulate accurately the sedimentation and consolidation of mixed sediments for a wide range of initial conditions. This is partly due to the difficulty to formulate the contribution of sand in the hindered settling regime when segregation does not clearly occur. Based on extensive settling experiments with mud-sand mixtures, the objective of this study was to improve the numerical modelling of mixed-sediment consolidation...
Tipo: Text Palavras-chave: Mud-sand mixtures; Hindered settling; Consolidation; Experiments; Numerical modelling; Segregation.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00254/36539/35168.pdf
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Classroom games of renewable fishery resource : Experimental results at Obihiro University of Agriculture and Veterinary Medicine OAK
齋藤, 陽子; 渡邉, 大樹; 河田, 幸視.
学生が被験者として実際に行動する教室実験は,経済学への関心を高めることが期待され実験経済学の分野でもその教育的効果が認識されてきた。小稿では,本学2年生を対象に行った共有資源管理に関する教室実験の結果に基づき,授業で実験を行うことの有効性を議論する。実験は資源管理が不可欠とされる漁業資源を対象に,共同管理の難しさ,現実へ当てはめた場合の問題点を理解することを目的とした。具体的な実験方法としては,いくつかの管理方法(シナリオ)を設定し,学生に魚(あめ玉)の収穫を行ってもらった。ひとつのシナリオを終了する毎に解説・議論することで,参加意欲が高まり,実験の意味や資源管理の難しさを身近に理解することができた。今後は,実験後に被験者への詳細な聞き取りを行うなど,共同管理に失敗する心理的要因を探ることが課題となる。
Palavras-chave: 再生可能資源; 教室実験; 共同管理; 漁業資源; Renewable resource; Classroom games; Experiments; Co-management; Fishery resource.
Ano: 2009 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2652
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How can we evaluate conservation auctions? Three Possible methods AgEcon
Schilizzi, Steven.
By design, tenders are used when costs are unknown. But if costs are unknown, how can we evaluate the tenders, when their evaluation involves measuring their cost-effectiveness? We identify three approaches: theoretical, empirical and experimental. We first use experimental data to compare the efficiency of each approach, then apply the most efficient one to field data from the Scottish fishing vessel decommissioning program. We estimate the potential errors one would make in using a less efficient approach. In this case, we demonstrate a novel use of controlled lab experiments for interpreting field data and evaluating policy effectiveness.
Tipo: Presentation Palavras-chave: Auctions; Conservation; Experiments; Evaluation; Measurement; Market-based policy instruments; Resource /Energy Economics and Policy.
Ano: 2012 URL: http://purl.umn.edu/124442
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Experimental Economics and the Environment: Eliciting Values for Controversial Goods AgEcon
Shogren, Jason F.; Parkhurst, Gregory M.; Hudson, Darren.
We illustrate the experimental method by examining bidding behavior for controversial goods, i.e., goods in which bidders have positive and negative values. Our results suggest that bidding behavior differs across auction type. Bidders with positive induced values bid sincerely in a WTP auction. Bidders bid conservatively, however, in the WTA auction, foregoing profitable opportunities. Informing bidders of their optimal strategy serves to attenuate bidding discrepancies but does not eliminate them. Treating the WTP and WTA auctions as equivalent given positive and negative values could lead one to overstate the costs relative to the benefits of the controversial good.
Tipo: Journal Article Palavras-chave: Experiments; Willingness to pay; Willingness to accept; Positive and negative induced values; Crop Production/Industries; Institutional and Behavioral Economics.
Ano: 2010 URL: http://purl.umn.edu/90824
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In-Store Evaluation of Consumer Willingness to Pay for “Farm-Raised” Pre-Cooked Roast Beef: A Case Study AgEcon
Nalley, Lawton Lanier; Hudson, Darren; Rogers, Robert W.; Martin, James M.; Herring, Joshua L..
A choice-based conjoint experiment was used to examine consumer willingness to pay for a farm-raised pre-cooked roast beef product. Consumers were contacted in a grocery store and provided a sample of the pre-cooked product. Findings indicate there is a small, but statistically significant willingness-to-pay premium for the farm-raised product, suggesting that some product differentiation may result in higher prices for these products. The study outlines an approach to marketing research.
Tipo: Journal Article Palavras-chave: Beef; Conjoint; Convenience foods; Experiments; In-store tests; Surveys; Livestock Production/Industries; Marketing.
Ano: 2004 URL: http://purl.umn.edu/59587
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The Endogenous Formation of Coalitions to Provide Public Goods: Theory and Experimental Evidence AgEcon
McEvoy, David M.; Cherry, Todd L.; Stranlund, John K..
This paper examines the endogenous formation of coalitions that provide public goods in which players implement a minimum participation requirement before deciding whether to join. We demonstrate theoretically that payoff-maximizing players will vote to implement efficient participation requirements and these coalitions will form. However, we also demonstrate that if some players are averse to inequality they can cause inefficient outcomes. Inequality-averse players can limit free riding by implementing larger than efficient coalitions or by blocking efficient coalitions from forming. We test the theory with experimental methods and observe individual behavior and coalition formation consistent with a model of inequality-averse players.
Tipo: Working or Discussion Paper Palavras-chave: Public goods; Coalition formation; Inequality aversion; Participation requirement; Experiments; Institutional and Behavioral Economics; Public Economics; C92; H41.
Ano: 2011 URL: http://purl.umn.edu/102265
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Market Power in Tradable Emission Markets: A Laboratory Testbed for Emission Trading in Port Phillip Bay, Victoria AgEcon
Cason, Timothy N.; Gangadharan, Lata; Duke, Charlotte.
In theory, competitive emission permit markets minimise total abatement cost for any emission ceiling. Permit markets are often imperfectly competitive, however, if they are thin and dominated by large firms. The dominant firm(s) could exercise market power and increase other firms’ costs of pollution control, while reducing their own emission control costs. This paper reports a testbed laboratory experiment to examine whether a dominant firm can exercise market power in a permit market organised using the double auction trading institution. Our parameters approximate the abatement costs of sources in a proposed tradable emissions market for the reduction of nitrogen in the Port Phillip Watershed in Victoria, Australia. We vary across treatments the...
Tipo: Conference Paper or Presentation Palavras-chave: Market Power; Emission Permits; Experiments; Environmental Regulation; Environmental Economics and Policy; C91; Q25; Q28.
Ano: 2003 URL: http://purl.umn.edu/57841
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NATURAL HAZARDS AND RISK AVERSION: EXPERIMENTAL EVIDENCE FROM LATIN AMERICA AgEcon
van den Berg, Marrit; Fort, Ricardo; Burger, Kees.
We use experimental and survey data from two natural-hazard prone countries in Latin America to test the hypothesis that natural hazards affect risk aversion. We use two methods to measure risk aversion: simple questions on the willingness to pay for a hypothetical lottery and more complicated experiments involving real pay-offs. We find that whereas the experiments provide reasonable estimates of risk aversion, the hypothetical questions result in unrealistic distributions of preferences. The experimental results strongly support the hypothesis that experiencing natural shocks makes people more risk averse, not only in the short run but also in the medium and long run.
Tipo: Conference Paper or Presentation Palavras-chave: Latin America; Nicaragua; Peru; Risk aversion; Natural hazards; Experiments; Environmental Economics and Policy; Institutional and Behavioral Economics; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/51394
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DEVELOPING A DEMAND REVEALING MARKET CRITERION FOR CONTINGENT VALUATION VALIDITY TESTS AgEcon
Rondeau, Daniel; Poe, Gregory L.; Schulze, William D..
Past research suggests that contingent valuation overstates demand for public goods. These estimates of hypothetical bias are probably invalid since they rely on voluntary contributions mechanisms which fail to reveal demand. An improved mechanism is shown to reveal aggregate demand in controlled experiments. However, individual contributions deviate from induced value. Key Words: contingent valuation, voluntary contributions, provision point, experiments JEL Codes: H41, C92, Q20
Tipo: Working or Discussion Paper Palavras-chave: Contingent valuation; Voluntary contributions; Provision point; Experiments; Research Methods/ Statistical Methods; H41; C92; Q20.
Ano: 1996 URL: http://purl.umn.edu/6856
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Exogenous Targeting Instruments under Differing Information Conditions AgEcon
Spraggon, John M..
This paper tests the ability of an exogenous targeting instrument to induce compliance when the principal cannot observe the actions of individual agents. A number of papers show that although these instruments are able to induce groups to the target outcome, they are not able to induce individuals to make socially optimal decisions in a number of different controlled laboratory experiments. This study investigates whether the information individuals have about others’ payoffs affects how they make their decisions in this environment. Ledyard (1995) suggests that when subjects have less information in public goods experiments they are more likely to choose the Nash equilibrium decision. However, as he points out, this effect differs between groups with...
Tipo: Working or Discussion Paper Palavras-chave: Moral Hazard in Groups; Exogenous Targeting Instruments; Experiments; Information; Research Methods/ Statistical Methods; C72; C92; D70.
Ano: 2007 URL: http://purl.umn.edu/7383
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Hey Look at Me: The Effect of Giving Circles on Giving AgEcon
Karlan, Dean S.; McConnell, Margaret.
Theories abound for why individuals give to charity. We conduct a field experiment with donors to a Yale University service club to test the impact of a promise of public recognition on giving. Some may claim that they respond to an offer of public recognition not to improve their social standing, but rather to motivate others to give. To tease apart these two theories, we conduct a laboratory experiment with undergraduates, and found no evidence to support the alternative, altruistic motivation. We conclude that charitable gifts increase in response to the promise of public recognition primarily because of individuals' desire to improve their social image.
Tipo: Working Paper Palavras-chave: Prosocial behavior; Experiments; Voluntary contributions; Financial Economics; Public Economics; D64; C90; L30.
Ano: 2012 URL: http://purl.umn.edu/121670
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Unlocking water markets: an experimental approach AgEcon
Cook, Joseph H.; Rabotyagov, Sergey S..
Tipo: Conference Paper or Presentation Palavras-chave: Water market; Experiments; Resource economies; Marketing; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/103940
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(Anti-) Coordination in Networks AgEcon
Kovarik, Jaromir; Mengel, Friederike; Romero, Jose Gabriel.
We study (anti-) coordination problems in networks in a laboratory experiment. Partici- pants interact with their neighbours in a fixed network to play a bilateral (anti-) coordination game. Our main treatment variable is the extent to which players are heterogeneous in the number of connections (neighbors) they have. Other network characteristics are held constant across treatments. We find the following results. Heterogeneity in the number of connections dramatically improves the rate of successful coordination. In addition, even though there is a multiplicity of Nash equilibria theoretically, a very sharp selection is observed empirically: the most connected player can impose her preferred Nash equilibrium almost always and observed Nash equilibria are...
Tipo: Working or Discussion Paper Palavras-chave: Game Theory; Networks; Coordination Problems; Experiments; Risk and Uncertainty; C72; C90; C91; D85.
Ano: 2010 URL: http://purl.umn.edu/61370
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IS CHEAP TALK EFFECTIVE AT ELIMINATING HYPOTHETICAL BIAS IN A PROVISION AgEcon
Murphy, James J.; Stevens, Thomas H.; Weatherhead, Darryl.
Replaced with revised version of paper 10/06/04.
Tipo: Working or Discussion Paper Palavras-chave: Contingent valuation; Experiments; Hypothetical bias; Voluntary; Resource /Energy Economics and Policy; C9; Q26; H41.
Ano: 2003 URL: http://purl.umn.edu/14510
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OBESITY AND HYPERBOLIC DISCOUNTING: AN EXPERIMENTAL ANALYSIS AgEcon
Richards, Timothy J.; Hamilton, Stephen F.; Pofahl, Geoffrey M..
Behavioral economists maintain that addictions such as alcoholism, smoking and over-eating represent examples of present-bias in decision making that is fundamentally irrational. In this article, we develop a model of present bias and apparently hyperbolic discounting that is fully consistent with rational behavior. We construct an experiment to test our hypothesis and to determine whether discount rates differ for individuals who engage in behaviors that could endanger their health. Our results show that discount functions are quasi-hyperbolic in shape, and that obesity and drinking are positively related to the discount rate. Anti-obesity policy, therefore, would be best directed to informing individuals as to the long-term implications of short-term...
Tipo: Conference Paper or Presentation Palavras-chave: Addiction; Discounting; Experiments; Hyperbolic; Obesity; Time-inconsistency; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; C91; D12; D91; I18.
Ano: 2010 URL: http://purl.umn.edu/116410
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Implementing the Efficient Auction: Initial Results from the Lab AgEcon
Margolis, Michael; Shogren, Jason F..
The efficient auction is designed to induce truthful bidding for bidders with affiliated values. Herein we implement the auction in the lab, and observe that inexperienced people can bid systematically in this more complex environment, albeit yielding a flatter bid function than the truthful one.
Tipo: Working or Discussion Paper Palavras-chave: Auction; Affiliation; Experiments; Valuation; Financial Economics; C9; D44.
Ano: 2003 URL: http://purl.umn.edu/10733
Registros recuperados: 30
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