Indigenous Theories

Few complete theories have been produced from social network analysis. Two that have are Structural Role Theory and Heterophily Theory. The basis of Heterophily Theory was the finding in one study that more numerous weak ties can be important in seeking information and innovation, as cliques have a tendency to have more homogeneous opinions as well as share many common traits. This homophilic tendency was the reason for the members of the cliques to be attracted together in the first place. However, being similar, each member of the clique would also know more or less what the other members knew. To find new information or insights, members of the clique will have to look beyond the clique to its other friends and acquaintances. This is what Granovetter called "the strength of weak ties". Role theory is a perspective in sociology and in social psychology that considers most of everyday activity to be the acting out of socially defined categories (e.g., mother, manager, teacher). Each social role is a set of rights, duties, expectations, norms and behaviours that a person has to face and fulfill. The model is based on the observation that people behave in a predictable way, and that an individual’s behavior is context specific, based on social position and other factors. The theatre is a metaphor often used to describe role theory. Although the word role (or roll) has existed in European languages for centuries, as a sociological concept, the term has only been around since the 1920s and 1930s. It became more prominent in sociological discourse through the theoretical works of George Herbert Mead, Jacob L. Moreno, and Linton. Two f Mead’s concepts – the mind and the self – are the precursors to role theory. Depending on the general perspective of the theoretical tradition, there are many ‘‘types’’ of role theory. The theory posits the following propositions about social behaviour: The division of labor in society takes the form of the interaction among heterogeneous specialized positions that we call roles; Social roles included "appropriate" and "permitted" forms of behavior, guided by social norms, which are commonly known and hence determine expectations; Roles are occupied by individuals, who are called "actors"; When individuals approve of a social role (i.e., they consider the role "legitimate" and "constructive"), they will incur costs to conform to role norms, and will also incur costs to punish those who violate role norms; Changed conditions can render a social role outdated or illegitimate, in which case social pressures are likely to lead to role change; The anticipation of rewards and punishments, as well as the satisfaction of behaving in a prosocial way, account for why agents conform to role requirements. In terms of differences among role theory, on one side there is a more functional perspective, which can be contrasted with the more micro level approach of the symbolic interactionist tradition. This type of role theory dictates how closely related individuals’ actions are to the society, as well as how empirically testable a particular role theory perspective may be. A key insight of this theory is that role conflict occurs when a person is expected to simultaneously act out multiple roles that carry contradictory expectations.