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Autor:innen: 
Erscheinungsjahr: 
2012
Schriftenreihe/Nr.: 
Discussion paper No. 73
Verlag: 
Aboa Centre for Economics (ACE), Turku
Zusammenfassung: 
We study information aggregation problems where to a set of measures a single measure of the same dimension is associated. The collection of measures could represent the beliefs of agents about the state of the world, and the aggregate would then represent the beliefs of the population. Individual measures could also represent the connectedness of agents in a social network, and the aggregate would reflect the importance of each individual. We characterize the aggregation rule that resembles the Nash welfare function. In the special case of probability aggregation problems, this rule is the only one that satisfies Bayesian updating and some well-known axioms discussed in the literature.
Schlagwörter: 
belief aggregation
belief updating
Nash welfare function
JEL: 
C71
D63
D74
Dokumentart: 
Working Paper

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