Preference and WTP stability for public forest management
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The assumption of the stability of preferences is fundamental to consumer theory and the use of cost-benefit analysis. Many papers within the stated preferences literature have tested this assumption, and have found mixed results. Individuals may become more sure of their preferences as they repeat a valuation task or purchase decision; they may also learn more about prices and quantities of substitutes or complements over time, or about other relevant characteristics of both the good being valued, and alternatives in their choice sets. In this paper, we test for the stability of preferences and willingness to pay for attributes of forest management both within one survey and between two different moments of time. The “within survey” test compares a set of responses from individuals over the sequence of the first 12 and the second 12 choices in a stated preference survey. The “between two different moments of time” test compares responses from the same people over a period of 6 months. Non-parametric analysis reveals little clear trending in choices across these sets, although a higher consistency for status quo choices than for enhanced environmental management choices is apparent. Overall, we reject the strictest test of the equivalence of WTP distributions between choice sets. However, we also find that respondents' mean willingness to pay is fairly stable both within survey and between moments of time. Such differences as emerge are mainly driven by the changes in variances of WTP and by imperfect correlations of individual-specific WTP between choice sets.
Czajkowski , M , Barczak , A , Budziński , W , Giergiczny , M & Hanley , N 2016 , ' Preference and WTP stability for public forest management ' Forest Policy and Economics , vol 71 , pp. 11-22 . DOI: 10.1016/j.forpol.2016.06.027
Forest Policy and Economics
© 2016 Elsevier B.V. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1016/j.forpol.2016.06.027
This study was carried out as a part of the NEWFOREX project (New Ways to Value and Market Forest Externalities, FP7-KBBE-2009-3, Project no. 243950). Funding support is gratefully acknowledged. MC gratefully acknowledges the support of the Polish Ministry of Science and Higher Education and the Foundation for Polish Science.
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