Characterization of social choice sets in terms of individuals' maximal sets: The fixed agenda framework

Josep E. Peris and M. Carmen Sánchez ()
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M. Carmen Sánchez: Departamento de Fundamentos del Análisis Económico, Universidad de Murcia, Campus de Espinardo, 30100 Espinardo, Murcia, Spain

Social Choice and Welfare, 2001, vol. 18, issue 1, 113-127

Abstract: In this paper we analyze the explicit representation of fixed agenda social choice correspondences under different rationality assumptions (independence, Pareto optimality, etc.). It is well known that, under some of these assumptions, the existence of dictators, oligarchies or individuals with veto power can be proven ([6] and [10]); but only a partial characterization of the social choice set is obtained. We establish a relationship between the social choice set and the individuals' maximal sets, which explicitly describes a fixed agenda social choice correspondence that satisfies these rationality assumptions.

Date: 2001-01-10
Note: Received: 30 December 1997/Accepted: 20 December 1999
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