Section Summary

Stratification systems are either closed, meaning they allow little change in social position, or open, meaning they allow movement and interaction between the layers. A caste system is one in which social standing is based on ascribed status or birth. Class systems are open, with achievement playing a role in social position. People fall into classes based on factors like wealth, income, education, and occupation. A meritocracy is a system of social stratification that confers standing based on personal worth, rewarding effort.

There are three main classes in the United States: upper, middle, and lower class. Social mobility describes a shift from one social class to another. Class traits, also called class markers, are the typical behaviors, customs, and norms that define each class.

Global stratification compares the wealth, economic stability, status, and power of countries as a whole. By comparing income and productivity between nations, researchers can better identify global inequalities.

Social stratification can be examined from different sociological perspectives—functionalism, conflict theory, and symbolic interactionism. The functionalist perspective states that systems exist in society for good reasons. Conflict theorists observe that stratification promotes inequality, such as between rich business owners and poor workers. Symbolic interactionists examine stratification from a micro-level perspective. They observe how social standing affects people’s everyday interactions and how the concept of “social class” is constructed and maintained through everyday interactions.