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01/28/2008: "Ethnic groups prefer to breed within themselves"

This paper presents an economic analysis of the intergenerational transmission of ethnic and religious traits through family socialization and marital segregation decisions. Frequency of intragroup marriage (homogamy), as well as socialization rates of religious and ethnic groups, depend on the group's share of the population: minority groups search more intensely for homogamous mates, and spend more resources to socialize their offspring. This pattern generally induces a dynamics of the distribution of ethnic and religious traits which converges to a culturally heterogeneous stationary population.

[ In other words, we all like being what we are, and having culture beats being mixed. No kidding sherlock. ]

http://ideas.repec.org/a/tpr/qjecon/v115y2000i3p955-988.html