
Institutions, according to Samuel P. Huntington, are "stable, valued, recurring patterns of behavior." Institutions can refer to mechanisms which govern the behavior of a set of individuals within a given community, and are identified with a social purpose, transcending individuals and intentions by mediating the rules that govern living behavior. According to Geoffrey M. Hodgson, it is misleading to say that an institution is a form of behavior. Instead, Hodgson states that institutions are "integrated systems of rules that structure social interactions."
The term "institution" commonly applies to both informal institutions such as customs, or behavior patterns important to a society, and to particular formal institutions created by law as well as custom and having a distinctive permanence in ordering social behaviors. Primary or meta-institutions are institutions such as the family that are broad enough to encompass other institutions.

