JEL classification: C65, D63, D71, D81 Mathematics Subject Classification (2000): 91B16

The class of maximin actions in general decision problems is characterized. JEL classification: C70, D81.

This note provides a behavioral characterization of mutually absolutely continuous multiple priors. JEL classification: D81

This article introduces the symposium on model uncertainty and robustness. © 2006 Elsevier Inc. All rights reserved. JEL classification: D81; D91

Definitions of sequential equilibrium and perfect equilibrium are given in games of imperfect recall. Subtleties regarding the definition are discussed. JEL Classification numbers: C70, D81.

Article history: Received 29 July 2008 Received in revised form 15 December 2009 Accepted 17 December 2009 Available online xxxx JEL classification: D81 Q42

Article history: Received 30 April 2009 Received in revised form 12 January 2010 Accepted 20 January 2010 Available online 1 February 2010 JEL classification: D44 D81

Article history: Received 7 May 2012 Received in revised form 6 November 2012 Accepted 9 November 2012 Available online 17 November 2012 JEL classification: D81 Q40 G11

We study unique and globally attracting solutions of a general nonlinear equation that has as special cases some recursive equations widely used in Economics. JEL classification: D81 , D91

A decision maker tests whether the gradient of loss function evaluated at a judgmental is zero. If test does not reject, action decision. rejects, sets equal to boundary rejection region. This statistical rule admissible and conditions on sample realization. The confidence level reflects maker’s aversion uncertainty. applied problem asset allocation. JEL Classification: C1, C11, C12, C13, D81