文章基本信息

标题：The Uncovered Set and the Core: Cox's Result Revisited
本地全文：下载
作者：Anindya Bhattacharya ; Victoria Brosi ; Francesco Ciardiello 等
期刊名称：Journal of Mechanism and Institution Design
印刷版ISSN：2399-844X
电子版ISSN：2399-8458
出版年度：2018
卷号：3
期号：1
页码：1-15
DOI：10.22574/jmid.2018.12.001
摘要：In this work first it is shown, in contradiction to the well-known claim in Cox (1987), that the uncovered set in a multidimensional spatial voting situation (under the usual regularity conditions) does not necessarily coincide with the core even when the core is singleton: in particular, the posited coincidence result, while true for an odd number of voters, may cease to be true when the number of voters is even. Second we provide a characterisation result for the case with an even number of voters: a singleton core is the uncovered set in this case if and only if the unique element in the core is the Condorcet winner.
关键词：Spatial voting games; uncovered set; core.