Monday, November 8 2021
[Inappropriate Title Here]: Multiplex Closure in Adolescents’ Friendship & Romantic Networks

Abstract: This paper examines closure in multiplex peer relationships. In particular, we ask whether adolescents follow a colloquial rule of not dating their friends’ exes. Theoretically, our aims build on two of the most well-known patterns in the social network literature: 1) Granovetter’s “forbidden triad” suggests strong-tie networks should exhibit a sparsity of open 2-paths that don’t subsequently close into triangles, and 2) Bearman et al (2004) demonstrate the importance of local network processes governing how romantic relationships form (particularly the taboo against four cycles, or people avoiding dating their ex-partners’ current partners’ ex-partners). By focusing only on friendship or romantic ties separately, previous literature fails to document how prevalent one of the most readily articulated norms adolescents actually express about romantic tie formation. “You don’t date your friends’ exes.” Answering this question requires combining friendship and romantic tie network layers for a single population. To investigate this question, we construct such multiplex networks for a collection of networks from PROSPER schools. With this collection of multiplex networks, we apply new extensions of exponential random graph models that are adapted for multiplex networks to provide an empirical test of this commonly-held belief that has not yet been examined by network scholars.

This is joint work with Christopher Marcum and Molly Copeland.
Speaker:jimi adams
Affiliation:Health & Behavioral Sciences
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