Submodularity and the evolution of Walrasian behavior

Vega-Redondo (1997) showed that imitation leads to the Walrasian outcome in Cournot Oligopoly. We generalize his result to aggregative quasi-submodular games. Examples are the Cournot Oligopoly, Bertrand games with differentiated complementary products, Common-Pool Resource games, Rent-Seeking games and generalized Nash-Demand games.I thank Jörg Oechssler, Rolf Tisljar, the editor, and an anonymous referee for helpful comments and suggestions. Financial support by the DFG is gratefully acknowledged.Submitted: September 2001 / Revised: January 2004