A theory of social motives on altruism and egalitarianim

The purpose of this paper is to lay theoretical foundations of social motives in dyad model from the view point of altruism and egalitarianism. I show following two findings. First, I show some criteria for classifying four approaches to social motives that were introduced by Umino. Second, by using the plane of altruism and egalitarianism I put in order various social motives. Then I clarify mutual relations among typical 13 social motives: for example "maxmin" is the weak type of altruistic and egalitarian motive and strong type of it is "a pang of conscience".