Incomplete-Information Models of Large Economies with Anonymity: Existence and Uniqueness of Common Priors

Publication Type  Preprints
Author  Martin Hellwig
Year of Publication  2011
Issue  2011/08
Abstract  The paper provides a speciÂ…cation of belief systems for models of large economies with anonymity in which aggregate states depend only on cross-section distributions of types. For belief systems satisfying certain conditions of mutual absolute continuity, the paper gives a necessary and sufficient condition for the existence of a common prior. Under the given conditions, the common prior is unique.
Publisher  Max Planck Institute for Research on Collective Goods
Place Published  Bonn
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Keywords  Large Economy, Belief systems, consistency, common prior
JEL-Codes  D82, C70, D83