Expectation states theory.

Expectation states theory is, in many ways, a textbook example of a theoretical research program. It is deductive, programmatic, formalized mathematically, cumulative, precise, and predictive; and its propositions have been subjected to rigorous evaluation. More importantly, however, it is a theory that illuminates core issues in social psychology and sociology more broadly. It is fundamentally a “macro-micro-macro” explanation about one way that categorical inequality is reproduced in society. Cultural beliefs about social categories at the macro level impact behavior and evaluation at the individual level, which acts to reproduce status structures that are consistent with pre-existing macro-level beliefs. Status structures in groups can be thought of as the building blocks of more macro-level structural inequalities in society. For example, to the extent that status processes make it less likely for women in work groups to emerge or be accepted as leaders, in the aggregate we will observe that more men than women hold leadership positions in organizations, a stratification pattern that is reproduced at least partially by the way macro-level beliefs impact individual behaviors and evaluations.