A closed system in the context of social stratification is a society where social mobility between classes is significantly restricted or non-existent. Individuals' social status is typically determined by birth and remains unchanged throughout their life.
Related terms
Social Mobility: The ability to move up or down the social hierarchy, which is greatly limited in a closed system.
Caste System: An example of a closed system where social status is hereditary and change in status is almost impossible.
Meritocracy: Contrasts with a closed system, as it suggests that social status can be achieved through individual talent and effort rather than being assigned at birth