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Homophily in Networks
“Networks often connect similar people, but similarity can arrive by several routes.”
01 / SUMMARY
In short
Homophily is the association between similarity and the formation or persistence of ties. It can arise through choice, geography, institutions, meeting opportunities, and prior exclusions.
03 / SCENE
In the wild
A workforce seems to choose friends by profession, although shifts and buildings separated teams before anyone chose.
04 / LIMIT
The limit
A homogeneous network alone proves neither conscious prejudice nor that friendship caused the similarity.
FINAL NOTE
What remains
Separate selection, influence, and structural opportunity before explaining why a network resembles itself.