This paper deals with the interaction between informal sanctions imposed by social norms and formal sanctions authorized by law. While some scholars claim that the formal rule merely substitutes for the informal rule, other authors argue that formal and informal rules are complementary. If the...

How the law and the social norm interact with each other in the legalized modern society, whether the law completely replaces the pre-existing social norm or they coexist, and whether their interaction achieves an efficient system of social rules or there is innate inefficiency, have remained...