Title

Interim efficient allocations under uncertainty

Publication Type

Journal Article

Publication Date

1-2009

Abstract

This paper considers an exchange economy under uncertainty with asymmetric information. Uncertainty is represented by multiple priors and posteriors of agents who have either Bewley's incomplete preferences or Gilboa-Schmeidler's maximin expected utility preferences. The main results characterize interim efficient allocations under uncertainty; that is, they provide conditions on the sets of posteriors, thus implicitly on the way how agents update the sets of priors, for non-existence of a trade which makes all agents better off at any realization of private information. For agents with the incomplete preferences, the condition is necessary and sufficient, but for agents with the maximin expected utility preferences, the condition is sufficient only. A couple of necessary conditions for the latter case are provided.

Keywords

Multiple priors, Interim efficiency, No trade, Dynamic consistency, Rectangular prior set

Discipline

Economic Theory

Research Areas

Economic Theory

Publication

Journal of Economic Theory

Volume

144

Issue

1

First Page

337

Last Page

353

ISSN

0022-0531

Identifier

10.1016/j.jet.2008.05.006

Publisher

Elsevier

Additional URL

http://dx.doi.org/10.1016/j.jet.2008.05.006

This document is currently not available here.

Share

COinS