Cumulative effects of triadic closure and homophily in social networks.

ABSTRACT: Social network structure has often been attributed to two network evolution mechanisms-triadic closure and choice homophily-which are commonly considered independently or with static models. However, empirical studies suggest that their dynamic interplay generates the observed homophily of real-world social networks. By combining these mechanisms in a dynamic model, we confirm the longheld hypothesis that choice homophily and triadic closure cause induced homophily. We estimate how much observed homophily in friendship and communication networks is amplified due to triadic closure. We find that cumulative effects of homophily amplification can also lead to the widely documented core-periphery structure of networks, and to memory of homophilic constraints (equivalent to hysteresis in physic

SUBMITTER: Asikainen A 

PROVIDER: S-EPMC7209984 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature