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Strategic Vote Trading in Power Sharing Systems

Author

Listed:
  • Dimitrios Xefteris
  • Nicholas Ziros

Abstract

This paper studies decentralized vote trading in a power sharing system that follows the rules of strategic market games. In particular, we study a two-party election in which prior to the voting stage, voters are free to trade votes for money. Voters hold private information about both their ordinal and cardinal preferences, whereas their utilities are proportionally increasing in the vote share of their favorite party. In this framework, we prove generic existence of a unique full trade equilibrium (an equilibrium in which nobody refrains from vote trading). Moreover, we argue that vote trading in such systems unambiguously improves voters' welfare.

Suggested Citation

  • Dimitrios Xefteris & Nicholas Ziros, 2017. "Strategic Vote Trading in Power Sharing Systems," American Economic Journal: Microeconomics, American Economic Association, vol. 9(2), pages 76-94, May.
    • Handle: RePEc:aea:aejmic:v:9:y:2017:i:2:p:76-94
    Note: DOI: 10.1257/mic.20150254
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    Cited by:

    1. Toraubally, Waseem A., 2019. "Arbitrage equilibria in large games with many commodities," Economics Letters, Elsevier, vol. 179(C), pages 24-28.
    2. Aragonès, Enriqueta & Rivas, Javier & Tóth, Áron, 2020. "Voter heterogeneity and political corruption," Journal of Economic Behavior & Organization, Elsevier, vol. 170(C), pages 206-221.
    3. Dimitrios Xefteris & Nicholas Ziros, 2024. "The “invisible hand” of vote markets," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 62(1), pages 153-165, February.
    4. Nikolas Tsakas & Dimitrios Xefteris & Nicholas Ziros, 2021. "Vote Trading in Power-Sharing Systems: A Laboratory Investigation," The Economic Journal, Royal Economic Society, vol. 131(636), pages 1849-1882.
    5. Xefteris, Dimitrios & Ziros, Nicholas, 2018. "Strategic vote trading under complete information," Journal of Mathematical Economics, Elsevier, vol. 78(C), pages 52-58.
    6. Áron Tóth & Javier Rivas & Enriqueta Aragonès, 2019. "Voter Heterogeneity and Political Corruption," Working Papers 1121, Barcelona School of Economics.

    More about this item

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative 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
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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