Simple and clever decision rules for a model of evolution

Under the decision rule specified by Kandori, Mailath, and Rob (1993) [Kand ori, M., Mailath, G.J., Rob, R., 1993. Learning, mutation, and long run equ ilibria in games. Econometrica 61, 29-56], myopic adjustment can lead to su rprising results, including coordination on strictly dominated strategies. We show that under an alternative decision rule, convergence to Nash equili brium is guaranteed. Moreover, if rare mutations are introduced, risk domin ant equilibria always correspond to long run equilibria. (C) 1998 Published by Elsevier Science S.A. All rights reserved.