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Commitment and Conflict in Unanimity Bargaining

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  • Miettinen, Topi
  • Vanberg, Christoph

Abstract

We theoretically investigate how the application of unanimity rule can lead to inefficient delay in collective decision making. We do so in the context of a distributive multilateral bargaining model featuring strategic pre-commitment. Prior to each bargaining round, players can declare a minimum share that they must receive in return for their vote. Such declarations become binding with an exogenously given probability. We characterize the set of stationary subgame perfect equilibria under all q-majority rules. Our results suggest that unanimity rule is uniquely inefficient. All other rules, including all-but-one, are fully efficient.

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  • Miettinen, Topi & Vanberg, Christoph, 2024. "Commitment and Conflict in Unanimity Bargaining," Working Papers 0749, University of Heidelberg, Department of Economics.
    • Handle: RePEc:awi:wpaper:0749
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    References listed on IDEAS

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    1. Merlo, Antonio & Wilson, Charles A, 1995. "A Stochastic Model of Sequential Bargaining with Complete Information," Econometrica, Econometric Society, vol. 63(2), pages 371-399, March.
    2. Timothy Feddersen & Wolfgang Pesendorfer, 1997. "Voting Behavior and Information Aggregation in Elections with Private Information," Econometrica, Econometric Society, vol. 65(5), pages 1029-1058, September.
    3. Feddersen, Timothy & Pesendorfer, Wolfgang, 1998. "Convicting the Innocent: The Inferiority of Unanimous Jury Verdicts under Strategic Voting," American Political Science Review, Cambridge University Press, vol. 92(1), pages 23-35, March.
    4. Muthoo, Abhinay, 1996. "A Bargaining Model Based on the Commitment Tactic," Journal of Economic Theory, Elsevier, vol. 69(1), pages 134-152, April.
    5. Olivier Compte & Philippe Jehiel, 2002. "On the Role of Outside Options in Bargaining with Obstinate Parties," Econometrica, Econometric Society, vol. 70(4), pages 1477-1517, July.
    6. Muthoo,Abhinay, 1999. "Bargaining Theory with Applications," Cambridge Books, Cambridge University Press, number 9780521576475, January.
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    Cited by:

    1. Piazolo, David & Vanberg, Christoph, 2022. "Legislative bargaining with private information: A comparison of majority and unanimity rule," Working Papers 0709, University of Heidelberg, Department of Economics.

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    More about this item

    Keywords

    bargaining; commitment; conflict; delay; international negotiations; climate negotiations; legislative; multilateral; voting; majority; unanimity;
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