A geometric proof of Gibbard's random dictatorship theorem

A geometric proof of Gibbard's random dictatorship theorem
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吉巴德随机独裁定理的几何证明

DOI:
10.1007/bf01213912
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发表时间:
1996
期刊:
影响因子:
1.3
通讯作者:
John Duggan
John Duggan
中科院分区:
经济学3区
文献类型:
--
作者:
John Duggan

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吉巴德已经证明,一个社会选择函数是策略证明的,当且仅当它是专政和两两社会选择函数的凸组合。我使用几何技术来证明每一个策略证明和主权社会选择函数是随机独裁的推论。
SummaryGibbard has shown that a social choice function is strategy-proof if and only if it is a convex combination of dictatorships and pair-wise social choice functions. I use geometric techniques to prove the corollary that every strategy-proof and sovereign social choice function is a random dictatorship.