Abstract
Mathematical sociology can and is expected to treat the emergent mechanism of social norms. Social norms work as the cement of society, yet sociology so far regards them as given. However, if we neglect its emergent mechanism, we may misunderstand individual behavior or social phenomena. If we clarify it, on the other hand, we can solve the fundamental sociological problem: the problem of order. One promising strategy is to formalize the emergent mechanism as preference formation to treat individual internalization of social norms. As a result, theoretically we can use results of rational choice theory and game theory, and methodologically we can bridge micro individual behavior to macro societal structures. For this purpose, pinpoint models are required. This project may contribute to answering what society is desirable.