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Extending the Condorcet Jury Theorem to a general dependent jury

机译:将孔多塞陪审团定理扩展为一般的附属陪审团

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摘要

We investigate necessary and sufficient conditions for the existence of Bayesian-Nash equilibria that satisfy the Condorcet Jury Theorem (CJT). In the Bayesian game G n among n jurors, we allow for arbitrary distribution on the types of jurors. In particular, any kind of dependency is possible. If each juror i has a “constant strategy”, σ i (that is, a strategy that is independent of the size n ≥ i of the jury), such that σ = (σ 1, σ 2, . . . , σ n . . .) satisfies the CJT, then by McLennan (Am Political Sci Rev 92:413–419, 1998) there exists a Bayesian-Nash equilibrium that also satisfies the CJT. We translate the CJT condition on sequences of constant strategies into the following problem: (**) For a given sequence of binary random variables X = (X 1, X 2, . . . , X n , . . .) with joint distribution P, does the distribution P satisfy the asymptotic part of the CJT?
机译:我们调查满足Condorcet陪审团定理(CJT)的贝叶斯-纳什均衡存在的必要和充分条件。在n个陪审员之间的贝叶斯游戏G n 中,我们允许任意分配陪审员的类型。特别地,任何类型的依赖都是可能的。如果每个陪审员i都有一个“恒定策略”,即σi (即独立于陪审团的大小n≥i的策略),则σ=(σ1 ,σ 2 ,..,σn ..)满足CJT,然后由McLennan(Am政治科学Rev 92:413-419,1998)建立了一个贝叶斯-纳什均衡,它也满足CJT。我们将恒定策略序列上的CJT条件转换为以下问题:(**)对于给定的二进制随机变量序列X =(X 1 ,X 2 ,...,X n ,。。。)具有联合分布P,分布P是否满足CJT的渐近部分?

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  • 来源
    《Social Choice and Welfare》 |2012年第1期|91-125|共35页
  • 作者

    Bezalel Peleg; Shmuel Zamir;

  • 作者单位

    Center for the Study of Rationality The Hebrew University of Jerusalem Jerusalem Israel;

    Center for the Study of Rationality The Hebrew University of Jerusalem Jerusalem Israel;

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  • 正文语种 eng
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