Les Cahiers de Recherche - HEC Paris
Majority vote following a debate
() and Itzhak GILBOA
Abstract: Voters determine their preferences over alternatives based
on cases (or arguments) that are raised in the public debate. Each voter is
characterized by a matrix, measuring how much support each case lends to
each alternative, and her ranking is additive in cases. We show that the
majority vote in such a society can be any function from sets of cases to
binary relations over alternatives. A similar result holds for voting with
quota in the case of two alternatives.
Keywords: Case-based decision theory; voting theory; debates; (follow links to similar papers)
JEL-Codes: D72; D82; (follow links to similar papers)
20 pages, March 1, 2002
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