Correlation Neglect , Voting Behaviour and Information Aggregation

Correlation Neglect , Voting Behaviour and Information Aggregation
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相关性忽视,投票行为与信息聚合

DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
R. Razin
R. Razin
中科院分区:
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文献类型:
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作者:
Gilat Levy;R. Razin

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在本文中,我们分析了当选民低估其信息来源之间的相关性(“相关性忽视”)时的选举。我们发现这种认知偏差可以改善政治结果。我们发现,由于相关性忽视而产生的极端信念会导致一些选民根据信息而不是政治偏好进行投票。我们描述了偏好分布的条件,在这些条件下,最优政策和更好的信息聚合会产生更高的投票份额。
In this paper we analyse elections when voters underestimate the correlation between their information sources (“correlation neglect”). We find that this cognitive bias can improve political outcomes. We show that the extreme beliefs which result from correlation neglect induce some voters to base their vote on information rather than on political preferences. We characterise conditions on the distribution of preferences under which this induces higher vote shares for the optimal policies and better information aggregation.