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| Registros recuperados: 137 | |
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| Akter, Sonia; Bennett, Jeffrey W.. |
| The sources of preference uncertainty in contingent valuation (CV) studies have rarely been investigated from a theoretical standpoint. This paper proposes a holistic theoretical framework of preference uncertainty that combines microeconomic theory with the theories of cognitive psychology. Empirical testing of the proposed theoretical model was carried out in Australia in the context of a national ‘Carbon Pollution Reduction Scheme (CPRS)’ to be introduced in 2010. Two separate ordered probit models for a certainty score associated with CV ‘Yes’ and ‘No’ responses were estimated. The results of the estimated regression models provide evidence supporting the hypotheses drawn from the theoretical model. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Contingent valuation; Preference uncertainty; Cognitive uncertainty; Climate change; Australia. |
| Ano: 2009 |
URL: http://purl.umn.edu/47938 |
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| Vieira,Irlaine R.; Oliveira,Jefferson S.; Santos,Kelly P. P.; Silva,Geisiane O.; Vieira,Fábio J.; Barros,Roseli F. M.. |
| ABSTRACT The immature leaves of the buriti palm (Mauritia flexuosa) are widely harvested in the municipality of Barreirinhas, Maranhão, for the production of handicrafts, which are sold to locals and tourists. The increasing demand for these artisanal goods is stimulating the emergence of an informal market for immature buriti leaves, leading to an intensification of their extraction and resulting in negative effects on local buriti palm populations and the ecosystem. Thus, the objective of the present study was to assess the environmental value of the buriti palm tree based on the maximum willingness to pay (WTP) for its conservation, using the contingent valuation method. Among the respondents, 99.74% reported that the palm species should be protected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contingent valuation; Handicrafts; Harvesting; Non-timber forest products (NTFP); Palm tree. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400532 |
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| Volinskiy, Dmitriy; Bergstrom, John C.; Cornwell, Christopher M.; Holmes, Thomas P.. |
| The assumption of independence of irrelevant alternatives in a sequential contingent valuation format should be questioned. Statistically, most valuation studies treat nonindependence as a consequence of unobserved individual effects. Another approach is to consider an inferential process in which any particular choice is part of a general choosing strategy of a survey respondent. A stochastic model is suggested, consistent with the reflexivity, transitivity, and continuity axioms of utility analysis. An application of this theoretical model to the valuation of watershed ecosystem restoration demonstrates that an empirical model recognizing reflexivity and transitivity, and also allowing for continuity, shows the highest in-sample predictive ability. |
| Tipo: Journal Article |
Palavras-chave: Contingent valuation; Sequential choices; Modeling approaches; Watershed ecosystem service valuation; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/59325 |
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| 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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| Itaoka, Kenshi; Krupnick, Alan J.; Akai, Makoto; Alberini, Anna; Cropper, Maureen L.; Simon, Nathalie B.. |
| A contingent valuation survey was conducted in Sizuoka, Japan, to estimate the willingness to pay (WTP) for reductions in the risk of dying and calculate the value of statistical life (VSL) for use in environmental policy in Japan. Special attention was devoted to the effects of age and health characteristics on WTP. We find that the VSLs are somewhat lower (103 to 344 million yen) than those found in the virtually identical survey applied in some developed countries. These values were subject to a variety of validity tests, which they generally passed. We find that the WTP for those over age 70 is lower than that for younger adults, but that this effect is eliminated in multiple regression. Rather, when accounting for other covariates, we find that WTP... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Willingness to pay; Value of statistical life; Mortality risk; Contingent valuation; Age; Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/10829 |
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| 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 |
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| Boys, Kathryn A.; Willis, David B.; George, Seraphine; Hammig, Michael D.. |
| The economy of Dominica faces a unique set of challenges. As with many other Caribbean nations, Dominica has historically been dependent upon agriculture. Over the past several hundred years, the island's economy has been largely supported through the concentrated mono-cropping of a variety of export-oriented crops including coffee, limes, vanilla, and bananas (FAVACA, 2008). Today, approximately 45% of Dominica's labor force is employed in the agricultural sector (FAVACA, 2008). While neighboring countries have economically benefited from tourism, due to its lack of white sand beaches, Dominica is not a typical tourist destination. Taking advantage of its landscape, rainforests, and diversity of natural wildlife, in an effort to diversify its economy... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Contingent valuation; Willingness to pay; Caribbean; Organic; Locally grown; Food; Agricultural and Food Policy; International Development; Marketing; O13; O54; Q01; Q13; Q18. |
| Ano: 2011 |
URL: http://purl.umn.edu/103903 |
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| Crutchfield, Stephen R.; Cooper, Joseph C.; Hellerstein, Daniel. |
| Nitrates in drinking water, which may come from nitrogen fertilizers applied to crops, are a potential health risk. This report evaluates the potential benefits of reducing human exposure to nitrates in the drinking water supply. In a survey, respondents were asked a series of questions about their willingness to pay for a hypothetical water filter, which would reduce their risk of nitrate exposure. If nitrates in the respondent's drinking water were to exceed the EPA minimum safety standard, they would be willing to pay $45 to $60, per household, per month, to reduce nitrates in their drinking water to the minimum safety standard. There are 2.9 million households in the four regions studied (White River area of Indiana, Central Nebraska, Lower... |
| Tipo: Report |
Palavras-chave: Water quality; Drinking water; Nitrates; Benefits; Contingent valuation; Resource /Energy Economics and Policy. |
| Ano: 1997 |
URL: http://purl.umn.edu/34025 |
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| Registros recuperados: 137 | |
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