Resolute refinements of social choice correspondences
نویسندگان
چکیده
منابع مشابه
Strategy-proof resolute social choice correspondences
We qualify a social choice correspondence as resolute when its set valued outcomes are interpreted as mutually compatible alternatives which are altogether chosen. We refer to such sets as “committees” and analyze the manipulability of resolute social choice correspondences which pick fixed size committees. When the domain of preferences over committees is unrestricted, the Gibbard–Satterthwait...
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Recently there are several works which analyzed the strategy−proofness of non−resolute social choice rules such as Duggan and Schwartz (2000) and Ching and Zhou (2001). In these analyses it was assumed that individual preferences are linear, that is, they excluded indifference from individual preferences. We present an analysis of the strategy−proofness of non−resolute social choice rules when ...
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We study the possibilities of constructing strategy-proof rules that choose sets of alternatives as a function of agents' preferences over such sets. We consider two restrictions on the domain of individual preferences over sets. Assuming that all singletons are in the range of the rule, we show that only dictatorial rules can be strategy-proof on the larger domain. The smaller domain also allo...
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A game form constitutionally implements a social choice correspondence if it implements it in Nash equilibrium and, moreover, the associated effectivity functions coincide. This paper presents necessary and sufficient conditions for a unanimous social choice correspondence to be constitutionally implementable, and sufficient and almost necessary conditions for an arbitrary (but surjective) soci...
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The content of the publication is the sole responsibility of the authors and it in no way represents the views of the Commition or its services. Abstract Preferences of a set of n individuals over a set of alternatives can be represented by a preference proole being an n-tuple of preference relations over these alternatives. A social choice correspondence assigns to every preference proole a su...
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ژورنال
عنوان ژورنال: Mathematical Social Sciences
سال: 2016
ISSN: 0165-4896
DOI: 10.1016/j.mathsocsci.2016.08.007