Willingness to Pay for Quality Improvements: Should Revealed and Stated Preference Data Be Combined? |
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Authors: | Ju-Chin Huang Timothy C Haab John C Whitehead |
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Institution: | Department of Economics, East Carolina University, Greenville, North Carolina, 27858 |
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Abstract: | In this article we propose theoretically consistent welfare measurement of use and nonuse values for an improvement in environmental quality with revealed and stated preference data. An analytical model based on the comparative static analysis of the variation function that describes the relationship between recreation demand and dichotomous choice contingent valuation models is estimated. Our results show that revealed and stated data should not be combined under the same assumed preference structure unless the two decisions imply the same change in behavior induced by the quality change. In addition, our results indicate scope effects in willingness to pay measures estimated with stated preference data. |
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