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Registros recuperados: 137
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Potential for Tradable Water Allocation and Rights in Jordan AgEcon
Carpio, Carlos E.; Ramirez, Octavio A.; Boonsaeng, Tullaya.
This paper estimates the costs of buying water use rights from farmers located in the Mafraq-Azraq basin in Jordan. Farmers’ water supply curve is estimated using data gathered from a contingent valuation survey. Estimation results indicate that a total supply of 29 million m3 could be periodically purchased from farmers at an annual price of approximately JD 0.23/m3 (1 JD ≈ 0.70 U.S. dollars), or a total cost of about JD 6.8 million per year.
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Non-parametric estimation; Water supply curve; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/56452
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Adoption and Impact of Hybrid Wheat in India AgEcon
Matuschke, Ira; Qaim, Matin.
In the light of ongoing debates about the suitability of hybrid seeds for smallholder farmers, this paper analyzes the adoption and impact of hybrid wheat in India. Based on survey data we show that farmers can benefit significantly from the proprietary technology. Neither farm size nor the subsistence level influence the adoption decision, but access to information and credit matters. Moreover, willingness-to-pay analysis reveals that adoption levels would be higher if seed prices were reduced. Given decreasing public support to agricultural research, policies should be targeted at reducing institutional constraints, to ensure that resource-poor farmers are not bypassed by private sector innovations.
Tipo: Conference Paper or Presentation Palavras-chave: Hybrid wheat; India; Technology adoption; Contingent valuation; Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/25678
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CONSUMERS' VALUATION OF DISEASE-RESISTANT NURSERY STOCK: A CASE STUDY OF DOGWOODS AgEcon
Gardner, Justin G.; Eastwood, David B.; Brooker, John R.; Klingeman, William E..
This article summarizes a study of consumers' willingness to pay (WTP), in urban areas in Tennessee, Mississippi, and Michigan, for a powdery mildew resistant dogwood tree. Powdery mildew is a disease affecting flowering dogwoods that can limit growth, detract from the appearance, and may cause plant decline and death. Study objectives were to provide information about consumers' WTP and to identify potential marketing strategies for the introduction of the disease-resistant tree. On average, survey respondents indicated they are willing to pay a $13.35 premium for a flowering dogwood tree which is resistant to powdery mildew. Regression results led to inferences that the presence of dogwoods in a respondent's yard, presence of dogwoods infected with...
Tipo: Journal Article Palavras-chave: Contingent valuation; Disease resistance; Dogwood; Marketing; Maximum likelihood; Nursery; Powdery mildew; Crop Production/Industries; Marketing.
Ano: 2003 URL: http://purl.umn.edu/14676
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Demand for and Value of Credence Characteristics: Case Beef AgEcon
Latvala, Terhi; Kola, Jukka.
The aim of this study is to evaluate both qualitatively and quantitatively the value of new information about and the information systems set for credence characteristics of beef. Economics of information is our theoretical framework. The quantitative approach focuses to measure the ex ante value of credence characteristics, and the method of contingent valuation is applied for this purpose. Results indicate that 59 % of Finnish consumers are willing to pay more to get information about safety and quality of beef products. Consumers are most concerned with diseases caused by food of animal origin. Genetically modified organisms (GMOs) are not considered as the mosthazardous risk factor in food products. However, if the beef products contain GMOs used in...
Tipo: Conference Paper or Presentation Palavras-chave: Beef; Information; Credence attributes; Contingent valuation; Willingness to pay; Food Consumption/Nutrition/Food Safety.
Ano: 2002 URL: http://purl.umn.edu/24841
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Do Supervisors Affect the Valuation of Public Goods? AgEcon
Franceschi, Dina; Vásquez, William F..
Systematic supervision procedures have been proposed to improve contingent valuation surveying, particularly in developing countries. Surprisingly, the CV literature does not say much about the potential effects of supervision even though there is evidence of interviewer effects and social desirability issues that can bias results. This paper investigates the effects of interview supervision on the valuation of public services, using split-sample treatments to include a test of scope of a nested good and to assess the effect of interview supervision on reported WTP. Results suggest that supervisors can be used to improve quality with no effect on WTP estimates.
Tipo: Journal Article Palavras-chave: Contingent valuation; Drinking water; Nicaragua; Social desirability; Supervision effects; Willingness to pay; Community/Rural/Urban Development; Consumer/Household Economics; Environmental Economics and Policy; Public Economics; Research Methods/ Statistical Methods.
Ano: 2011 URL: http://purl.umn.edu/117771
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Valoração contingente da Área de Proteção Ambiental (APA) São José – MG: um estudo de caso AgEcon
Cirino, Jader Fernandes; Lima, Joao Eustaquio de.
The São José Environmental Protection Area (EPA) in the State of Minas Gerais has a rich natural and historical patrimony. However, in spite of its value and of being a protection area since 1981, it has now suffering several degradations. In that sense, the major objective of this work is to value São José EPA with the purpose of supplying subsidies for the elaboration and attainment of public and private projects of preservation or sustainable exploration of the referred asset, as well as for public policy directed to its administration. As valuation method, it was used the contingent valuation through the approach of Hanemann (1984) and the bootstrapping method to obtain a monthly willingness-to-pay (WTP) per family of the municipal districts that...
Tipo: Journal Article Palavras-chave: São José EPA; Contingent valuation; Environmental valuation; Willingness-to-pay.; Agribusiness; Q; Q5; Q56.
Ano: 2008 URL: http://purl.umn.edu/61229
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Valuing the Risk of Death and Injury from Landmines in Thailand AgEcon
Barns, Sandra A.; Cameron, Michael P.; Gibson, John; Lim, Steven; Marsh, Dan; Scrimgeour, Frank G.; Tressler, John.
This paper presents estimates of the benefits of clearing landmines in rural Thailand using the contingent-valuation (CV) method. The data came from a survey where we asked 341 respondents referendum-type questions that elicit their willingness to pay for landmine clearance. Our estimates imply a value of a statistical life of between US$0.2-0.3 million. The survey also provides estimates of the injury risk-death risk tradeoff and the implicit value of statistical injury. These estimates suggest that the value of lives and injuries saved from mine clearing is likely to be at least an order of magnitude greater than those used in existing studies of mine clearing. Linking a household expenditure survey involving the same sample enables the relationship...
Tipo: Conference Paper or Presentation Palavras-chave: Benefit-cost analysis; Contingent valuation; Landmines; Value of statistical life; Environmental Economics and Policy; Institutional and Behavioral Economics; International Development; Political Economy; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; J17; J28; 022; Q28.
Ano: 2004 URL: http://purl.umn.edu/97797
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Consumer Willingness to Pay for Locally Grown Products: The Case of South Carolina AgEcon
Carpio, Carlos E.; Isengildina-Massa, Olga.
The objective of this study is to evaluate South Carolina (SC) consumers’ willingness to pay for “SC grown” products. Results indicate that consumers in SC are willing to pay an average premium of 27% for local produce and 23% for local animal products. Premiums for local products are influenced by age, gender, and income.
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Demand for local products; State branding and promotion programs; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/6815
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Protest Adjustments in the Valuation of Watershed Restoration Using Payment Card Data AgEcon
Collins, Alan R.; Rosenberger, Randall S..
When using a willingness-to-pay (WTP) format in contingent valuation (CV) to value water-shed restoration, respondents may protest by questioning why they should pay to clean up a pollution problem that someone else created. Using a sample selection interval data model based on Bhat (1994) and Brox, Kumar, and Stollery (2003), we found that the decision to protest and WTP values were correlated. Protest sample selection bias resulted in a 300 percent overestimate of mean WTP per respondent. Using different ad hoc treatments of protesters, protest bias resulted in moderate effects (-10 percent to +14 percent) after controlling for sample selection bias.
Tipo: Journal Article Palavras-chave: Contingent valuation; Protest bias; Watershed restoration; Sample selection; Grouped Tobit; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/44706
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An Initial Assessment of Policies for Saving a Rare Australian Glider: Experimental Results, Economics and Ecology AgEcon
Tisdell, Clement A.; Wilson, Clevo; Swarna Nantha, Hemanath.
Reviews the ecological status of the mahogany glider and describes its distribution, habitat and abundance, life history and threats to it. Three serial surveys of Brisbane residents provide data on the knowledge of respondents about the mahogany glider. The results provide information about the attitudes of respondents to the mahogany glider, to its conservation and relevant public policies and about variations in these factors as the knowledge of participants of the mahogany glider alters. Similarly data is provided and analysed about the willingness to pay of respondents to conserve the mahogany glider. Population viability analysis is applied to estimate the required habitat area for a minimum viable population of the mahogany glider to ensure at least...
Tipo: Working or Discussion Paper Palavras-chave: Conservation policies; Contingent valuation; Knowledge; Mahogany glider Petaurus gracilis; Population viability analysis; Social cost-benefit analysis; Environmental Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/51290
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Chapter 16: CRITERIA FOR EVALUATING RESULTS OBTAINED FROM CONTINGENT VALUATION METHODS AgEcon
Belzer, Richard B.; Theroux, Richard P..
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Contingent valuation; Willingness to pay; Elevation criteria; Reliability; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25987
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UK Consumers' Willingness-to-Accept (WTA) GM Food AgEcon
Moon, Wanki; Rimal, Arbindra; Balasubramanian, Siva K..
Our study uses contingent valuation survey data (WTA and WTP) collected in the UK to examine consumers' behavioral intention with regard to GM food. In particular, we characterize respondents who selected "Don't Know" and "Protest" options in WTP questions in terms of what they would do when offered discount for GM food.
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; WTA; WTP; Genetically modified food; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 2007 URL: http://purl.umn.edu/34973
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Consumer versus citizen preferences in contingent valuation: evidence on the role of question framing AgEcon
Ovaskainen, Ville; Kniivila, Matleena.
Rather than individual consumer preferences, responses to referendum-style contingent valuation surveys on environmental goods may express citizen assessments that take into account benefits to others. We reconsider the consumer versus citizen hypothesis with a focus on the role of framing information. Survey data on conservation areas in Ilomantsi, Finland, are used. Different versions of the valuation question were used to encourage the respondents to take the consumer or the citizen role. The citizen version expectedly resulted in substantially fewer zero-WTP responses and protests and higher mean and median WTP, suggesting that the framing information has a major effect on the preferences expressed. The findings support the idea of multiple...
Tipo: Article Palavras-chave: Altruism; Benefit–cost analysis; Conservation areas; Contingent valuation; Multiple preference orderings; Referendum; Spike model; Consumer/Household Economics.
Ano: 2005 URL: http://purl.umn.edu/118585
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Chapter 05: CONTINGENT VALUATION OF HEALTH RISK REDUCTIONS FOR SHELLFISH AgEcon
Lin, Chung-Tung Jordan; Milon, J. Walter.
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Health risk; Shellfish; Contingent valuation; Willingness to pay; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25971
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Testing heterogeneous anchoring and shift effect in double-bounded models: The case of recreational fishing in Tasmania AgEcon
Jennings, Sarah; Rust, Steven; Yamazaki, Satoshi; Lyle, Jeremy.
This paper explores the extent and nature of anchoring and shift effects in a double-bounded contingent valuation of recreational fishing in Tasmania’s inshore saltwater fishery. In particular we model the situation where respondents, when answering the second valuation question, evaluate the bid amount partly with reference to the size of the first bid amount. The estimates of the coefficients and mean WTP for a day of fishing are compared across different contingent valuation models, including a single-bounded model, a conventional double-bounded model and models that control anchoring and exogenous shift effects in both homogeneous and heterogeneous forms. Overall we find consistent evidence of anchoring, but mixed evidence of a shift effect. Results...
Tipo: Conference Paper or Presentation Palavras-chave: Contingent valuation; Anchoring bias; Shift effect; Heterogeneity; Recreational fishing; Environmental Economics and Policy; C35; Q26.
Ano: 2010 URL: http://purl.umn.edu/59265
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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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Household perceptions of climate change and preferences for mitigation action: the case of the Carbon Pollution Reduction Scheme in Australia AgEcon
Akter, Sonia; Bennett, Jeffrey W..
This study aims to show how Australian households perceive climate change and what they are prepared to do to reduce the harmful effects of climate change. A web-based survey in November 2008 asked approximately 600 New South Wales households about their willingness to pay additional household expenses caused by the Carbon Pollution Reduction Scheme (CPRS) proposed by the Australian government. The Contingent Valuation Method (CVM), a widely used non-market valuation technique, was applied. Results of the study show there is a positive demand to mitigate climate change in Australia resulting from a wish to avoid climate change. Households’ willingness to pay (WTP) for climate change was, however, significantly curbed as households was uncertain about...
Tipo: Report Palavras-chave: Contingent valuation; Climate change; Carbon Pollution Reduction Scheme; Willingness to pay; Uncertainty; Australia; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/94819
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A Comparison of Approaches to Mitigate Hypothetical Bias AgEcon
Champ, Patricia A.; Moore, Rebecca; Bishop, Richard C..
We compare two approaches to mitigating hypothetical bias. The study design includes three treatments: an actual payment treatment, a contingent valuation (CV) treatment with a follow-up certainty question, and a CV treatment with a cheap talk script. Our results suggest that both the follow-up certainty treatment and the cheap talk treatment produce willingness-to-pay (WTP) estimates consistent with the actual payment treatment. However, the follow-up certainty treatment provides response distributions at all offer amounts that are statistically similar to the actual payment treatment, while the cheap talk treatment provides similar responses only at some offer amounts. Furthermore, the cheap talk treatment is effective only for inexperienced individuals....
Tipo: Journal Article Palavras-chave: Contingent valuation; Hypothetical bias; Follow-up certainty; Cheap talk; Nonmarket valuation; Environmental Economics and Policy; Public Economics; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/55867
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Urban Water Restrictions: Attitudes and Avoidance AgEcon
Cooper, Bethany; Crase, Lin; Burton, Michael P..
In most urban cities across Australia, water restrictions remain the dominant policy mechanism to restrict urban water consumption. The extensive adoption of water restrictions over several years means that Australian urban water prices have consistently not reflected the opportunity cost of water (Edwards 2008). Given the generally strong political support for water restrictions and the likelihood that they will persist for some time, there is value in understanding householders’ attitudes in this context. More specifically, identifying the welfare gains associated with avoiding urban water restrictions entirely would be a non-trivial contribution to our knowledge. This paper is used to describe the results from a contingent valuation study that...
Tipo: Conference Paper or Presentation Palavras-chave: Urban water restrictions; Water policy; Contingent valuation; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/58892
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Age, Health, and the Willingness to Pay for Mortality Risk Reductions: A Contingent Valuation Survey of Ontario Residents AgEcon
Krupnick, Alan J.; Alberini, Anna; Cropper, Maureen L.; Simon, Nathalie B.; O'Brien, Bernie; Goeree, Ron; Heintzelman, Martin.
Much of the justification for environmental rulemaking rests on estimates of the benefits to society of reduced mortality rates. This research aims to fill gaps in the literature that estimates the value of a statistical life (VSL) by designing and implementing a contingent valuation study for persons 40 to 75 years of age, and eliciting WTP for reductions in current and future risks of death. Targeting this age range also allows us to examine the impact of age on WTP and, by asking respondents to complete a detailed health questionnaire, to examine the impact of health status on WTP. This survey was self-administered by computer to 930 persons in Hamilton, Ontario, in 1999. The survey uses audio and visual aids to communicate baseline risks of death and...
Tipo: Working or Discussion Paper Palavras-chave: Mortality risk valuation; Canada; Contingent valuation; Age; Health status; Risk and Uncertainty; I1; Q20; Q26.
Ano: 2000 URL: http://purl.umn.edu/10888
Registros recuperados: 137
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