Motives behind willingness to pay for improving biodiversity in a water ecosystem: Economics, ethics and social psychology
This paper reports on empirical work extending the standard economic approach to valuation by including psychological and philosophical factors. More specifically a contingent valuation method survey was applied to biodiversity improvement while simultaneously assessing rights based beliefs, consequentialism and the theory of planned behaviour. The latter was assessed using measures of attitudes, subjective norms and perceptions of control over willingness to pay. The results show that standard socio-economic explanatory variables are far inferior to those of social psychology and philosophy, and that these factors offer a better understanding of the motives behind responses to contingent valuation. The implication is that alternative means of measuring an individual's pluralistic values should be taken into account in order to assess the validity and meaning of willingness to pay.
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- Nick Hanley & Clive L Spash, 1993.
"Preferences, Information and Biodiversity Preservation,"
Working Papers Series
93/12, University of Stirling, Division of Economics.
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- Spash, Clive L., 2002. "Informing and forming preferences in environmental valuation: Coral reef biodiversity," Journal of Economic Psychology, Elsevier, vol. 23(5), pages 665-687, October.
- Clive L. Spash, 2000. "Ethical Motives and Charitable Contributions in Contingent Valuation: Empirical Evidence from Social Psychology and Economics," Environmental Values, White Horse Press, vol. 9(4), pages 453-479, November.
- Clive L. Spash, 2006. "Non-Economic Motivation for Contingent Values: Rights and Attitudinal Beliefs in the Willingness To Pay for Environmental Improvements," Land Economics, University of Wisconsin Press, vol. 82(4), pages 602-622.
- Arild Vatn, 2004. "Environmental Valuation and Rationality," Land Economics, University of Wisconsin Press, vol. 80(1), pages 1-18.
- Ajzen, Icek & Brown, Thomas C. & Rosenthal, Lori H., 1996. "Information Bias in Contingent Valuation: Effects of Personal Relevance, Quality of Information, and Motivational Orientation," Journal of Environmental Economics and Management, Elsevier, vol. 30(1), pages 43-57, January.
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