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Inducing Cooperation through Weighted Voting and Veto Power

Author

Listed:
  • Antonin Macé
  • Rafael Treibich

Abstract

We study the design of voting rules for committees representing heterogeneous groups (countries, states, districts) when cooperation among groups is voluntary. While efficiency recommends weighting groups proportionally to their stakes, we show that accounting for participation constraints entails overweighting some groups, those for which the incentive to cooperate is the lowest. When collective decisions are not enforceable, cooperation induces more stringent constraints that may require granting veto power to certain groups. In the benchmark case where groups differ only in their population size (i.e., the apportionment problem), the model provides a rationale for setting a minimum representation for smaller groups.

Suggested Citation

  • Antonin Macé & Rafael Treibich, 2021. "Inducing Cooperation through Weighted Voting and Veto Power," American Economic Journal: Microeconomics, American Economic Association, vol. 13(3), pages 70-111, August.
    • Handle: RePEc:aea:aejmic:v:13:y:2021:i:3:p:70-111
    DOI: 10.1257/mic.20180309
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    Cited by:

    1. Margarita Kirneva & Matias Nunez, 2021. "Voting by Simultaneous Vetoes," Working Papers 2021-08, Center for Research in Economics and Statistics.

    More about this item

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior

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