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Frondel, Manuel
Andor, Mark
Vance, Colin
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Beiträge zur Jahrestagung des Vereins für Socialpolitik 2015: Ökonomische Entwicklung - Theorie und Politik - Session: Microeconometrics B04-V1
The overestimation of willingness-to-pay (WTP) in hypothetical responses is a well-known finding in the literature. Various techniques have been proposed to remove or, at least, reduce this bias. Using about 30,000 responses on WTP for a variety of power mixes from a panel of 6,500 German households, this article simultaneously explores the effects of two common ex-ante approaches -- cheap talk and consequential script -- and the ex-post certainty approach to calibrating hypothetical WTP responses. Based on a switching regression model that accounts for the potential endogeneity of respondent certainty and controlling for unobserved heterogeneity using a fixed-effects estimator, we find evidence for a lower WTP among those respondents who classify themselves as definitely certain about their answers. While neither cheap talk nor the consequential-script corrective reduce WTP estimates, receiving either of these scripts increases the probability that respondents indicate definite certainty about their WTP bids.
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Conference Paper

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