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A note on the Condorcet jury theorem for couples

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  • Raphael Thiele

    (Friedrich Schiller University)

Abstract

A jury and two valid options are given. Each agent of the jury picks exactly one of these options. The option with the most votes will be chosen by the jury. In the N-couple model of Althöfer and Thiele (Theory and Decision 81:1–15, 2016), the jury consisted of 2N agents. These agents form N independent couples, with dependencies within the couples. The authors assumed that the agents who form a couple have the same competence level. In this note, we relax this assumption by allowing different competence levels within the couples. We show that the theoretical results of Althöfer and Thiele remain valid under this relaxation.

Suggested Citation

  • Raphael Thiele, 2017. "A note on the Condorcet jury theorem for couples," Theory and Decision, Springer, vol. 83(3), pages 355-364, October.
    • Handle: RePEc:kap:theord:v:83:y:2017:i:3:d:10.1007_s11238-017-9602-3
    DOI: 10.1007/s11238-017-9602-3
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    References listed on IDEAS

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    1. Bernard Grofman, 1975. "A comment on ‘democratic theory: A preliminary mathematical model.’," Public Choice, Springer, vol. 21(1), pages 99-103, March.
    2. Alexander Zaigraev & Serguei Kaniovski, 2012. "Bounds on the competence of a homogeneous jury," Theory and Decision, Springer, vol. 72(1), pages 89-112, January.
    3. Ingo Althöfer & Raphael Thiele, 2016. "A Condorcet jury theorem for couples," Theory and Decision, Springer, vol. 81(1), pages 1-15, June.
    4. Serguei Kaniovski, 2010. "Aggregation of correlated votes and Condorcet’s Jury Theorem," Theory and Decision, Springer, vol. 69(3), pages 453-468, September.
    5. Ruth Ben-Yashar & Jacob Paroush, 2000. "A nonasymptotic Condorcet jury theorem," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 17(2), pages 189-199.
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