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The elasticity of supply is measured by:
Upper Class
An elite and largely self-sustaining group who possess most of the country’s wealth; they constitute about 1 percent of the U.S. population.
Caste System
A form of social stratification in which status is determined by one’s family history and background and cannot be changed.
Social Mobility
The movement of individuals or groups within the hierarchical system of social classes.
Apartheid
The system of segregation of racial and ethnic groups that was legal in South Africa between 1948 and 1991.
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