<特集：モデル> 人間行動の進化的研究における互恵的利他行動モデル  [in Japanese]

The purpose of this paper is to examine the use of Trivers's reciprocal altruism model in the evolutionary study of human behavior. Human behavioral ecologists use the reciprocal altruism model to predict and explain human behaviors. In evolutionary psychology, on the other hand, Cosmides and Tooby use this model not to explain human behaviors but to predict a module for detecting cheaters. I will argue these different applications of the model reflect different construals of the model.