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Preference Elicitation under Oath

Nicolas Jacquemet (), Robert-Vincent Joule (), Stephane Luchini () and Jason Shogren
Additional contact information
Robert-Vincent Joule: LPS - Laboratoire de Psychologie Sociale - AMU - Aix Marseille Université
Stephane Luchini: GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique

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Abstract: Eliciting sincere preferences for non-market goods remain a challenge due to the discrepency between hypothetical and real behavior and false zeros. The gap arises because people either overstate hypothetical values or understate real commitments or a combination of both. Herein we examine whether the traditional real-world institution of the solemn oath can improve preference elicitation. Applying the social psychology theory on the oath as a truth-telling-commitment device, we ask our bidders to swear on their honour to give honest answers prior to participating in an incentive-compatible second-price auction. The oath is an ancillary mechanism to commit bidders to bid sincerely in a second-price auction. Results from our induced valuation testbed treatments suggest that the oath-only auctions outperform all our other auctions (real and hypothetical). In our homegrown valuation treatments eliciting preferences for dolphin protection, the oath-only design induced people to treat as binding both their experimental budget constraint (i.e., lower values on the high end of the value distribution) and participation constraint (i.e., positive values in place of the zero bids used to opt-out of auction). Based on companion treatments, we show the oath works through an increase in the willingness to tell the truth, due to a strengthening of the intrinsic motivation to do so.

Keywords: Oath; Commitment; Vickrey auction; Hypothetical bias; Induced values; Homegrown values (search for similar items in EconPapers)
Date: 2013-01
New Economics Papers: this item is included in nep-cbe, nep-exp and nep-upt
Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-00731244v1
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Citations: View citations in EconPapers (135)

Published in Journal of Environmental Economics and Management, 2013, 65 (1), pp.110-132. ⟨10.1016/j.jeem.2012.05.004⟩

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Journal Article: Preference elicitation under oath (2013) Downloads
Working Paper: Preference Elicitation under Oath (2013) Downloads
Working Paper: Preference Elicitation under Oath (2013) Downloads
Working Paper: Preference Elicitation under Oath (2009) Downloads
Working Paper: Preference Elicitation under Oath (2009) Downloads
Working Paper: Preference Elicitation under Oath (2009) Downloads
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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:halshs-00731244

DOI: 10.1016/j.jeem.2012.05.004

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