Voting by Committees

Salvador Barberà (), Hugo Sonnenschein and Lin Zhou

Econometrica, 1991, vol. 59, issue 3, 595-609

Abstract: The main result of this paper characterizes voting by committees. There are n voters and K objects. Voters must choose a subset of K. Voting by committees is defined by one monotone family of winning coalitions for each object; an object is chosen if it is supported by one of its winning coalitions. This is proven to be the class of all voting schemes satisfying voter sovereignty and nonmanipulability on the domain of separable preferences. The result is analogous to the characterization of Clarke-Groves schemes in that it exhibits the class of all nonmanipulable schemes on an important domain. Copyright 1991 by The Econometric Society.

Date: 1991
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Related works:
Working Paper: Voting by Committees (1990)
Working Paper: VOTING BY QUOTA AND COMMITTEE (1988)
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