ABSTRACT
This paper presents the four concepts of rational action, that Habermas find himself revising social science literature. They are teleological, normative, dramaturgic and communicative action. It shows, after this, how these concepts can be employed to situate analytically action notions used in Political Economy. It shows too, next, how these concepts can help to find the limits of economic approach. It is criticized, finally, the economic imperialism that is shown to express the expansionism of instrumental reason.
KEYWORDS:
Economic methodology; rationality; political economy