Social Choice and Welfare

, Volume 35, Issue 1, pp 49–64 | Cite as

A quantitative discursive dilemma

Original Paper

Abstract

The typical judgment aggregation problem in economics and other fields is the following: a group of people has to judge/estimate the value of an uncertain variable y, which is a function of k other variables, i.e., yD(x1, . . . , xk). We analyze when it is possible for the group to arrive at collective judgements on the variables that respect D. We consider aggregators that fulfill Arrow’s IIA-condition and neutrality. We show how possibility and impossibility depend on the functional form of D, and generalize Pettit’s (2001) binary discursive dilemma to quantitative judgements.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Sveriges RiksbankStockholmSweden
  2. 2.Norges Bank (Central Bank of Norway)OsloNorway

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