This paper addresses the sensitivity of dichotomous choice contingent valuation method (DC CVM) based mean willingness-to-pay (WTP) estimates to the DC CVM sample design and to alternative measures of WTP. This issue is examined both analytically and empirically. The analysis of ten different DC CVM data sets revealed a sensitivity in estimated mean WTP to the sample design and to the measure chosen to calculate mean WTP.
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Cooper et al. (1992) studied this question.
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