Social stratification
Ethnicity

Ethnic prejudice and discrimination operate much the same as do racial prejudice and discrimination in society. In fact, only recently have scholars begun to differentiate race and ethnicity; historically, the two were considered to be identical or closely related. With the scientific development of genetics and the human genome as fields of study, most scholars now recognize that race is socially defined on the basis of biologically determined characteristics that can be observed within a society while ethnicity is defined on the basis of culturally learned behavior. Ethnic identification can include shared cultural heritage such as language and dialect, symbolic systems, religion, mythology and cuisine. As with race, ethnic categories of persons may be socially defined as minority categories whose members are under-represented in positions of social power. As such, ethnic categories of persons can be subject to the same types of majority policies. Whether ethnicity feeds into a stratification system as a direct, causal factor or as an intervening variable may depend on the level of ethnographic centrism within each of the various ethnic populations in a society, the amount of conflict over scarce resources, and the relative social power held within each ethnic category.
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