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Unanimous Rules in the Laboratory

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  • Laurent Bouton
  • Aniol Llorente-Saguer
  • Frédéric Malherbe

Abstract

We study the information aggregation properties of unanimous voting rules in the laboratory. In line with theoretical predictions, we find that majority rule with veto power dominates unanimity rule. We also find that the strategic voting model is a fairly good predictor of observed subject behavior. There are, however, cases where organizing the data seems to require a mix of strategic and sincere voting. This pattern of behavior would imply that the way majority rule with veto power is framed may significantly affect the outcome of the vote. Our data strongly supports such an hypothesis.

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  • Laurent Bouton & Aniol Llorente-Saguer & Frédéric Malherbe, 2016. "Unanimous Rules in the Laboratory," NBER Working Papers 21943, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:21943
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    Cited by:

    1. Nunnari, Salvatore, 2021. "Dynamic legislative bargaining with veto power: Theory and experiments," Games and Economic Behavior, Elsevier, vol. 126(C), pages 186-230.
    2. Herrera, Helios & Llorente-Saguer, Aniol & McMurray, Joseph C., 2019. "Information aggregation and turnout in proportional representation: A laboratory experiment," Journal of Public Economics, Elsevier, vol. 179(C).
    3. Breitmoser, Yves & Valasek, Justin, 2017. "A rationale for unanimity in committees," Discussion Papers, Research Unit: Economics of Change SP II 2017-308, WZB Berlin Social Science Center.
    4. Quement, Mark T. Le & Marcin, Isabel, 2020. "Communication and voting in heterogeneous committees: An experimental study," Journal of Economic Behavior & Organization, Elsevier, vol. 174(C), pages 449-468.
    5. Arnaud Dellis, 2022. "Does Party Polarization Affect the Electoral Prospects of a New Centrist Candidate?," Games, MDPI, vol. 13(4), pages 1-20, July.
    6. Núñez, Matías & Pivato, Marcus, 2019. "Truth-revealing voting rules for large populations," Games and Economic Behavior, Elsevier, vol. 113(C), pages 285-305.
    7. Kim, Chulyoung & Kim, Sang-Hyun & Lee, Jinhyuk & Lee, Joosung, 2022. "Strategic alliances in a veto game: An experimental study," European Journal of Political Economy, Elsevier, vol. 75(C).
    8. Helios Herrera & Aniol Llorente-Saguer & Joseph C McMurray, 2019. "The Marginal Voter's Curse," The Economic Journal, Royal Economic Society, vol. 129(624), pages 3137-3153.
    9. Bernardo Moreno & María del Pino Ramos-Sosa & Ismael Rodriguez-Lara, 2019. "Conformity and truthful voting under different voting rules," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 53(2), pages 261-282, August.
    10. Matthew Gould & Matthew D. Rablen, 2019. "Are World Leaders Loss Averse?," CESifo Working Paper Series 7763, CESifo.
    11. Bouton, Laurent & Ogden, Benjamin, 2017. "Ethical Voting in Multicandidate Elections," CEPR Discussion Papers 12374, C.E.P.R. Discussion Papers.
    12. Laurent Bouton & Benjamin G. Ogden, 2017. "Group-based Voting in Multicandidate Elections," NBER Working Papers 23898, National Bureau of Economic Research, Inc.
    13. Kawamura, Kohei & Vlaseros, Vasileios, 2017. "Expert information and majority decisions," Journal of Public Economics, Elsevier, vol. 147(C), pages 77-88.
    14. Spenkuch, Jörg L., 2018. "Expressive vs. strategic voters: An empirical assessment," Journal of Public Economics, Elsevier, vol. 165(C), pages 73-81.

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    More about this item

    JEL classification:

    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General

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