A Test of the Equality of Closed-Ended and Open-Ended Contingent Valuations

Mary Jo Kealy and Robert Turner

American Journal of Agricultural Economics, 1993, vol. 75, issue 2, 321-331

Abstract: A test is developed to find whether open-ended and closed-ended contingent valuation mechanisms lead to significantly different results. The test is based on joint estimation of willingness to pay responses to open- and closed-ended questions asked of the same sample of individuals. In a public good example, individuals do respond differently depending on question format. Possible explanations include different incentives for strategic behavior and respondents' lack of familiarity with the open-ended question type. No differences in willingness to pay were found in a private good example.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ajagec:v:75:y:1993:i:2:p:321-331.

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