Judgment aggregation in search for the truth
AbstractWe analyse the problem of aggregating judgments over multiple issues from the perspective ofefficient aggregation of voters’ private information. While new in judgment aggregation theory,this perspective is familiar in a different body of literature about voting between twoalternatives when voters. disagreements stem (fully or partly) from conflicts of informationrather than interests. Combining the two literatures, we consider a simple judgment aggregationproblem and model the private information underlying voters’ judgments. We analyse the resultingstrategic incentives and determine which voting rules lead to collective judgments thatefficiently use all private information, assuming that voters share a preference for truecollective judgments. We find that in many, but not all cases a quota rule should be used, whichdecides on each issue according to whether the proportion of ‘yes’ votes exceeds a particular quota.
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Bibliographic InfoPaper provided by Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization in its series Research Memoranda with number 040.
Date of creation: 2011
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- de Clippel, Geoffroy & Eliaz, Kfir, 2012.
"Premise-Based versus Outcome-Based Information Aggregation,"
CEPR Discussion Papers
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- Geoffroy de Clippel & Kfir Eliaz, 2012. "Premise-Based versus Outcome-Based Information Aggregation," Working Papers 2012-10, Brown University, Department of Economics.
- Dietrich, Franz, 2011. "Scoring rules for judgment aggregation," MPRA Paper 35657, University Library of Munich, Germany.
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