Evaluating the Validity of the Dichotomous Choice Question Format in Contingent Valuation
Hypothetical and actual cash willingness to pay (WTP) for an art print were elicited with dichotomous choice and open-ended question formats. Comparing hypothetical and actual dichotomous choice responses using both a likelihood ratio test and the method of convolutions suggests we reject equality at the 0.05 but not the 0.01 level. Hypothetical WTP was roughly two times actual WTP with the dichotomous choice format. There were no significant differences between the open-ended and dichotomous choice question formats when both were used to estimate hypothetical WTP or both used to estimate actual WTP. Copyright Kluwer Academic Publishers 1997
Volume (Year): 10 (1997)
Issue (Month): 2 (September)
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