The bigger the group, the smaller the chance of interracial friendship, research finds

The larger the group, the smaller the chance of forming interracial friendships, a new University of Michigan study shows.Published in the Proceedings of the National Academy of Sciences, the study examines how the size of a community affects the realization of people's preferences for friends. U-M researchers Siwei Cheng and Yu Xie tested their theoretical model using both simulated and real data on actual friendships among 4,745 U.S. high school students.

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