Interim efficiency with MEU-preferences

Resumo

Recently Kajii and (2008) proposed to characterize interim efficient allocations in an exchange economy under asymmetric information when uncertainty is represented by multiple posteriors. When agents have Bewley's incomplete preferences, Kajii and Ui (2008) proposed a necessary and sufficient condition on the set of posteriors. However, when agents have Gilboa--Schmeidler's MaxMin expected utility preferences, they only propose a sufficient condition. The objective of this paper is to complete Kajii and Ui's work by proposing a necessary and sufficient condition for interim efficiency for various models of ambiguity aversion and in particular MaxMin expected utility. Our proof is based on a direct application of some results proposed by Rigotti, Shannon and Stralecki (2008).

Ficha do documento

Tipo

Estudo

Ano

2009

Instituição

Fundação Getulio Vargas. Escola de Pós-graduação em Economia

Fonte

Repositório da FGV

Idioma

Inglês

Acesso

Não informado

Identificador

oai:repositorio.fgv.br:10438/2687

Temas

Economia

Palavras-chave

No tradeMaxMin expected utilityMultiple priors and posteriorsInterim efficiencyEconomiaModelos econométricos