Do We Detect and Exploit Mixed Strategy Play by Opponents?

We report an experiment in which each subject repeatedly plays a game with a
unique Nash equilibrium in mixed strategies against some computer-implemented mixed strategy. The results indicate subjects are successful at detecting and exploiting
deviations from Nash equilibrium. However, there is heterogeneity in subject behavior
and performance. We present a one variable model of dynamic random belief formation which rationalizes observed heterogeneity and other features of the data.

By: Jason Shachat, J. Todd Swarthout

Published in: RC22699 in 2003


This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.


Questions about this service can be mailed to .