Journal
SOCIAL NETWORKS
Volume 55, Issue -, Pages 47-54Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.socnet.2018.05.001
Keywords
Online network; Homophily; Prestige; ERGMs; Climate change; Hyperlink formation
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Funding
- DFG, German Research Foundation [1381]
- Swiss National Science Foundation (SNF) [100017E-135915]
- Swiss National Science Foundation (SNF) [100017E-135915] Funding Source: Swiss National Science Foundation (SNF)
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Previous work has shown that hyperlinks reflect actors' strategic choices; these dyadic relationships depend on the actors' exogenous attributes (e.g., homophily) and the network's endogenous features (e.g., prestige distribution among actors). We combine these factors as explanatory variables in different exponential random graph models (ERGMs) to assess the relative strength of prestige and homophily for the actors' link formation. We analyze the climate change discourse in a hyperlink network formed by US civil society actors from November 2014 and test how relevant the different factors are, including variables such as actor type, country, position, and topic. We find that both prestige and various aspects of homophily influence link formation online. With regard to the importance of the different factors, positional homophily stands out, followed by prestige and other homophily effects. (C) 2018 Elsevier B.V. All rights reserved.
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