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Donation Payment Mechanisms and Contingent Valuation: An Empirical Study of Hypothetical Bias

Patricia Champ () and Richard Bishop

Environmental & Resource Economics, 2001, vol. 19, issue 4, 383-402

Abstract: Donation payment mechanisms are well suited forsome contingent valuation studies. In aneffort to better understand the discrepancythat has been consistently found between actualand hypothetical donations, we investigate anapproach to estimating actual willingness todonate using contingent donations with afollow-up question in which respondents ratethe level of certainty about their response tothe contingent donation question. The approachallows us to estimate the magnitude of thehypothetical bias and identify the respondentsresponsible for the bias. Identification ofthe respondents responsible for thehypothetical bias is the first step towarddeveloping an understanding of the causes andpossible remedies. In this study we find thatmost of the respondents (80%) to thecontingent donation question provide a responseconsistent with how we predict they wouldrespond in an actual donation situation. Copyright Kluwer Academic Publishers 2001

Keywords: actual donations; calibration; contingent donations; contingent valuation; hypothetical bias; uncertainty (search for similar items in EconPapers)
Date: 2001
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