Herding Friends in Similarity-Based Architecture of Social Networks
| dc.contributor.author | David-Barrett, Tamas | |
| dc.date.accessioned | 2021-10-28T14:54:32Z | |
| dc.date.available | 2021-10-28T14:54:32Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Although friendship as a social behaviour is an evolved trait that shares many similarities with kinship, there is a key difference: to choose friends, one must select few from many. Homophily, i.e., a similarity-based friendship choice heuristic, has been shown to be the main factor in selecting friends. Its function has been associated with the efficiency of collective action via synchronised mental states. Recent empirical results question the general validity of this explanation. Here I offer an alternative hypothesis: similarity-based friendship choice is an individual-level adaptive response to falling clustering coefficient of the social network typical during urbanisation, falling fertility, increased migration. The mathematical model shows how homophily as a friend-choice heuristic affects the network structure: (1) homophilic friendship choice increases the clustering coefficient; (2) network proximity-based and similarity-based friendship choices have additive effects on the clustering coefficient; and (3) societies that face falling fertility, urbanisation, and migration, are likely go through a u-shaped transition period in terms of clustering coefficient. These findings suggest that social identity can be seen as an emergent phenomenon and is the consequence, rather than the driver of, homophilic social dynamics, and offer an alternative explanation for the rise of “fake news” as a societal phenomenon | es |
| dc.identifier.citation | Scientific Reports volume 10, Article number: 4859 (2020) | es |
| dc.identifier.uri | https://doi.org/10.1038/s41598-020-61330-6 | es |
| dc.identifier.uri | http://hdl.handle.net/11447/4964 | |
| dc.language.iso | en_US | es |
| dc.title | Herding Friends in Similarity-Based Architecture of Social Networks | es |
| dc.type | Article | es |
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