Origins of Homophily in an Evolving Social Network1

@article{Kossinets2009OriginsOH,
  title={Origins of Homophily in an Evolving Social Network1},
  author={Gueorgi Kossinets and Duncan J. Watts},
  journal={American Journal of Sociology},
  year={2009},
  volume={115},
  pages={405 - 450}
}
The authors investigate the origins of homophily in a large university community, using network data in which interactions, attributes, and affiliations are all recorded over time. The analysis indicates that highly similar pairs do show greater than average propensity to form new ties; however, it also finds that tie formation is heavily biased by triadic closure and focal closure, which effectively constrain the opportunities among which individuals may select. In the case of triadic closure… 
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