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An efficiency characterization of plurality social choice on simple preference domains

Biung-Ghi Ju ()

Economic Theory, 2005, vol. 26, issue 1, 115-128

Abstract: We consider a model of social choice dealing with the problem of choosing a subset from a set of objects (e.g. candidate selection, membership, and qualification problems). Agents have trichotomous preferences for which objects are partitioned into three indifference classes, goods, bads, and nulls, or dichotomous preferences for which each object is either a good or a bad. We characterize plurality-like social choice rules on the basis of the three main axioms, known as Pareto efficiency, anonymity, and independence. Copyright Springer-Verlag Berlin/Heidelberg 2005

Keywords: Pareto efficiency; Anonymity; Independence; Plurality; Trichotomous preferences; Dichotomous preferences. (search for similar items in EconPapers)
Date: 2005
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