There are two basic ways market organization is brought about... Some combination of the two is usual the case: - Tom R. Burns

Functionalist systems theories. The theorists in this tradition explain the emergence and/or maintenance of parts, structures, institutions, norms or cultural patterns of a social system in terms of their consequences, that is, the particular functions each realizes or satisfies. This includes, for instance, their contribution to the maintenance and reproduction over time of the larger system. The major functionalist in sociology is arguably Talcott Parsons.

In the most abstract sense, a system is a set of objects together with relationships among the objects. Such a definition implies that a system has properties, functions, and dynamics distinct from its constituent objects and relationships.

Actor-oriented, dynamic systems theories. This family of theories -- inspired to a great extent by Buckley -- is largely non-functionalist. It includes Buckley’s (1967, 1998) “modern systems theory,” Archer’s (1995) “morphogenetic” theory, Burns’ “actor-system-dynamics” (also ASD; Burns et al. 1985; Burns and Flam 1987), and the “” of Geyer and van der Zouwen (1978). Complex, dynamic social systems are analysed in terms of stabilizing and destabilizing mechanisms, with human agents playing strategic roles in these processes. Institutions and cultural formations of society are carried by, transmitted, and reformed through individual and collective actions and interactions.