Subject of the analysis is the theory of F. A. Haiek about the institutional frame of the spontaneous market order and its contemporary sounding. Studied are the nature, functions and structure of the social functions and the way they generate order. At front is drawn the character of the institutions as information and communication carriers and their role for the economizing of a knowledge. The focus is set on the emerging of the informal rules and conventions, which appear as unintentional consequences from the human activity. The second part is dedicated to the relevance of the theory for the contemporary post-communist reality. Defended is the thesis that the paradigm for the spontaneous market order and its institutional frame is necessary as a philosophy of the new social arrangement in more continuous and global perspective. The messages of Haiek are revealed in its warnings for the danger for the monopoly power of the state in the creation of new norms of the social practice, as well as in the insisting for a policy, leaving sufficient space for the changes in the informal market institutions.