In contexts in which players have no priors, we analyze a learning process based on ex-post regret as a guide to understand how to play games of incomplete information under private values. The conclusions depend on whether players interact within a fixed set (fixed matching) or they are...

We furnish conditions on the primitives of a Bayesian game that guarantee the existence of a Bayes-Nash equilibrium. By allowing for payoff discontinuities in actions, we cover various applications that cannot be handled by extant results.

This paper examines the conception of individuals as being of certain types in Harsanyi'stransformation of games of incomplete information into games of complete information. Itargues that while the conception of the individual in games of complete information offerspotential advances over the...