Sociological Development in Social Choice Theory

本文阐明了理性选择理论与社会选择理论的关系，具体的社会现象e.g.social歧视、社会冲突、价值判断等与抽象的社会理论如社会福利函数或自由主义悖论的关系，以及某些投票制度的本质，其中有些制度实际上已被社会系统或政治机构所采用，有些制度则被认为是“好的”或“更好的”程序。我们将开发一些计算机程序来模拟社会福利函数和条件。我们的大部分结果都显示在Shakaiteki Sentaku-riron no Shakaigaku-teki Tenkai中（社会选择理论社会学系）这是我们为补助金收集的研究报告。

We clarify (1) the relationship between rational choice theory and social choice theory, (2) the connection between concrete social phenomena, e.g.social discrimination, social conflict, value judgment and others, and abstract social theory, e.g.social welfare function or liberal paradox and (3) the nature of some voting systems, some of which are adopted by social systems or poltical bodies actually and some others of which are proposed to be "good" or "better" procedures.For further research, we will develop some computer programs which simulate social welfare function and conditions imposed.Most of our results are shown in Shakaiteki Sentaku-riron no Shakaigaku-teki Tenkai (Sociological Department in Social Choice Theory) that is our collected research reports for the Grant-in-Aid.