Leveraging the Honor Code: Public Goods Contributions under Oath

Jérôme Hergueux (), Nicolas Jacquemet (), Stéphane Luchini () and Jason Shogren
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Jérôme Hergueux: Strasbourg, France and ETH Zurich, Center for Law and Economics
Stéphane Luchini: Aix-Marseille Univ. (Aix-Marseille School of Economics) and CNRS

Environmental & Resource Economics, 2022, vol. 81, issue 3, No 8, 616 pages

Abstract: Abstract Public good games are at the core of many environmental challenges. In such social dilemmas, a large share of people endorse the norm of reciprocity. A growing literature complements this finding with the observation that many players exhibit a self-serving bias in reciprocation: “weak reciprocators” increase their contributions as a function of the effort level of the other players, but less than proportionally. In this paper, we build upon a growing literature on truth-telling to argue that weak reciprocity might be best conceived not as a preference, but rather as a symptom of an internal trade-off at the player level between (i) the truthful revelation of their private reciprocal preference, and (ii) the economic incentives they face (which foster free-riding). In truth-telling experiments, many players misrepresent private information when this is to their material benefit, but to a significantly lesser extent than what would be expected based on the profit-maximizing strategy. We apply this behavioral insight to strategic situations, and test whether the preference revelation properties of the classic voluntary contribution game can be improved by offering players the possibility to sign a classic truth-telling oath. Our results suggest that the honesty oath helps increase cooperation (by 33% in our experiment). Subjects under oath contribute in a way which is more consistent with (i) the contribution they expect from the other players and (ii) their normative views about the right contribution level. As a result, the distribution of social types elicited under oath differs from the one observed in the baseline: some free-riders, and many weak reciprocators, now behave as pure reciprocators.

Keywords: Truth-telling oath; Public goods; Social preferences; Reciprocity; Cooperation (search for similar items in EconPapers)
JEL-codes: C72 D83 (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (6)

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Working Paper: Leveraging the Honor Code: Public Goods Contributions under Oath (2022)
Working Paper: Leveraging the Honor Code: Public Goods Contributions under Oath (2022)
Working Paper: Leveraging the Honor Code: Public Goods Contributions under Oath (2022)
Working Paper: Leveraging the Honor Code: Public Goods Contributions under Oath (2016)
Working Paper: Leveraging the Honor Code: Public Goods Contributions under Oath (2016)
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DOI: 10.1007/s10640-021-00641-2

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