Reply to critics

Abstract

There is a rationale for the replicator dynamics as a model of cultural evolution based on imitation. The Nash bargaining game has quite general significance in conditions of social exchange and is at least as important as Prisoner’s Dilemma for a theory of the social contract. Conditions affecting evolution of the equal split norm in infinite and finite populations are discussed. There is a guide to empirical literature supporting the claim that evolutionary models are better explanations of observed behavior than rational choice models.