The Homogeneity Of Social Networks
The homogeneity of social networks is one of the most striking regularities of group life (1–4). Across countless social settings—from high school to college, the workplace to the Internet (5–8)—and with respect to a wide variety of personal attributes—from drug use to religious beliefs, political orientation to tastes in music (1, 6, 9, 10)—friends tend to be much more similar than chance alone would predict.
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Quoted on Wed Aug 15th, 2012