Species substitution and question sequencing in contingent valuation surveys evaluating the hunting of several types of wildlife
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ABSTRACT:
One of the first lessons in any economics course is that prices of substitute commodities matter. For example, the magnitude of estimated values for a specific recreation area may be substantially affected by the availability of substitute sites. This basic lesson of economics is often overlooked in the design of contingent-valuation questions. Assumptions regarding the prices of substitutes become implicit in designing surveys and are rarely made explicit to survey respondents. In this article, hypotheses are formulated about hunter responses to contingent valuation questions under explicit and implicit assumptions regarding prices of substitute hunting opportunities. The hypotheses are tested using data from a statewide survey of Maine hunters. The results indicate that it may not be necessary to specify assumptions that prices of substitutes remain unchanged. In contrast, respondents did not change their statements of value when told that the prices of substitutes had doubled. Investigates the effects of implicit versus explicit assumptions regarding the prices of hunting alternative species of wildlife in Maine in the context of a contingent valuation study. Determines whether the sequencing of valuation questions evaluating several species in a single survey influences stated values. Results indicate that it may not be necessary to specify assumptions that prices of substitutes remain unchanged. In contrast, respondents do not change their statements of value when told that the prices of substitutes have doubled. Offers suggestions for further research.
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