The purpose of this study is to survey theories and findings of altruism so that we can clarify the meaning and role of it in human relations. Two approachs to the study of altruism have been prevalent. The one approch is to use the development of mod...
The purpose of this study is to survey theories and findings of altruism so that we can clarify the meaning and role of it in human relations. Two approachs to the study of altruism have been prevalent. The one approch is to use the development of modern biology since the mid-nineteenth century and of population genetics in the twentieth century. Biologists and sociobilogists have tried to answer the questions related to altruism by building models with "group selection" or "kin selection". The other approach has been made by economists whose ideas and theories are based on the traditional methodology such as "utility maximization". Neither of these two approaches can give a complete explanation for the persistence and effects of altruism.
This paper also examines variants of the two approaches to altruism, and it tries to shed light on the question, how can altruistic behavior, which by definition reduces personal fitness, possibly evolve by natural selection? Hoping this world to be more altruistic, this paper intends to invite a lot of more complete works of altruism.