In analytical sociology, and in sociology more generally, a theory of action should meet the three requirements: wide applicability; heuristic/hypothesis-generating power; and modularity. The chapter discusses the model of frame selection (MFS) as a theory of action that fulfills the requirements. MFS is based on the assumption of adaptive or “variable” rationality that is taken from dual-process/systems models in social psychology. It allows construction of highly simplified models of individual behavior in applications that focus on complex social dynamics. The chapter shows how MFS can be and has been used to derive new hypotheses in a wide range of sociological fields. To further illustrate its explanatory power, the chapter presents an application to the case of voter participation. In the final sections, the chapter shows how the MFS can provide flexible microfoundations for analytical sociology.
