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Aggregate uncertainty in the citizen candidate model yields extremist parties

机译:公民候选人模型中的总体不确定性导致极端政党

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摘要

We extend the citizen candidate model of electoral competition with sincere voting to allow for k ≥ 2 states of aggregate uncertainty. We discuss and characterize the equilibrium set in this framework. We provide conditions for the existence of two-party equilibria when k = 2 and show that the policies of the two parties in any such equilibrium are not only divergent but that the parties are extremist: when the political mood is left-wing, the left-wing party wins decisively with a platform that is to the left of the left-wing median voter, while when the political mood is right-wing, the right-wing party wins decisively with a platform that is to the right of the right-wing median voter. We then provide conditions under which such equilibria remain robust for an arbitrary value of k.
机译:我们通过诚恳的投票扩展选举竞争的公民候选人模型,以允许k≥2的总体不确定性状态。我们讨论并描述了该框架下的均衡集。我们提供了当k = 2时两党均衡存在的条件,并表明在任何这样的均衡中两党的政策不仅是分歧的,而且双方都是极端主义者:当政治情绪左翼时,左派右翼政党以左翼中间投票者左侧的平台决定性地获胜,而当政治情绪为右翼时,右翼政党以右翼右翼选民的平台决定性地获胜。翼中位数选民。然后,我们提供了这样的条件,在这种条件下,对于k的任意值,此类平衡均保持稳健。

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  • 来源
    《Social Choice and Welfare》 |2011年第1期|83-104|共22页
  • 作者

    Sandro Brusco; Jaideep Roy;

  • 作者单位

    Department of Economics Stony Brook University Stony Brook USA;

    Department of Economics University of Birmingham Birmingham UK;

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  • 原文格式 PDF
  • 正文语种 eng
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