2000 年 2000 巻 13 号 p. 73-84
We all make judgements about personal identity in daily life and attach importance to it. In studying the question of personal identity, we are trying to clarify and analyze the concepts we have and the principles we employ in making such judgements. The empiricist theory of personal identity proposed by Derek Parfit has been highly influential. In this paper, I attempt to make a detailed explication of his theory and to review it from a sociological standpoint. I suggest that Parfit's theory of personal identity fails to illuminate the meaning of ascription of responsibility.