Aggregating judgments by the majority method

García-Bermejo, Juan Carlos ()
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García-Bermejo, Juan Carlos: Departamento de Análisis Económico (Teoría e Historia Económica). Universidad Autónoma de Madrid.

No 2006/10, Working Papers in Economic Theory from Universidad Autónoma de Madrid (Spain), Department of Economic Analysis (Economic Theory and Economic History)

Abstract: “Judgement aggregation has been receiving increasing attention over recent years. Some typical impossibility results have been proved, about majority and other similar aggregation methods. Those results depend essentially on certain logical constraints borrowed from standard two- valued deductive logic. Nevertheless, the adequacy of these constraints is doubtful. In this paper, we show that by weakening the consistency conditions in a plausible way, such impossibility theorems can be reversed. We also show that the formalism habitually employed in social choice theory may convey a richer setting for analysing this sort of aggregation.”

Keywords: Judgement aggregation; majority method; logical constraints on judgment aggregation; discursive dilemma (search for similar items in EconPapers)
JEL-codes: D7 D70 D71 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cdm and nep-dcm
Date: 2006-09

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Persistent link: http://EconPapers.repec.org/RePEc:uam:wpaper:200610

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