Does Don't Know Mean No? Analysis of 'Don't Know' Responses in Dichotomous Choice Contingent Valuation Questions

Peter A. Groothuis and John C. Whitehead ()

Applied Economics, 2002, vol. 34, issue 15, pages 1935-40

Abstract: The "don't know" response option in contingent valuation dichotomous choice questions is analysed using data from both willingness to pay and willingness to accept studies. An empirical analysis is conducted to determine whether respondents are stating a response similar to yes or no responses or a middle response. It is found that "don't know" responses are similar to no responses in the willingness to pay study. In the willingness to accept study, it is found that the "don't know" responses are similar to a middle response. It is further suggested that researchers consider calculating ambivalence bounds when a "don't know" response is a middle response. Copyright 2002 by Taylor and Francis Group

Date: 2002

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Working Paper: Does Don't Know Mean No? Analysis of 'Don't Know' Responses in Dichotomous Choice Contingent Valuation Questions
Working Paper: Does Don't Know Mean No? Analysis of 'Don't Know Responses in Dichotomous Choice Contingent Valuation Questions (2002)
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