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Homophily and Polarization in Twitter Political Networks: A Cross-Country Analysis
[journal article]
Abstract Homophily, the tendency of people to have ties with those who are similar, is a fundamental pattern to understand human relations. As such, the study of homophily can provide key insights into the flow of information and behaviors within political contexts. Indeed, some degree of polarization is nec... view more
Homophily, the tendency of people to have ties with those who are similar, is a fundamental pattern to understand human relations. As such, the study of homophily can provide key insights into the flow of information and behaviors within political contexts. Indeed, some degree of polarization is necessary for the functioning of liberal democracies, but too much polarization can increase the adoption of extreme political positions and create democratic gridlock. The relationship between homophilous communication ties and political polarization is thus fundamental because it affects a pillar of democratic regimes: the need for public debate where divergent ideas and interests can be confronted. This research compares the degree of homophily and political polarization in Catalan MPs' Twitter mentions network to Dutch MPs' Twitter mentions network. Exponential random graph models were employed on a one-year sample of mentions among Dutch MPs (N = 7,356) and on a one-year, three-month sample of mentions among Catalan MPs (N = 19,507). Party polarization was measured by calculating the external-internal index of both Twitter mentions networks. Results reveal that the mentions among Catalan MPs are much more homophilous than those among the Dutch MPs. Indeed, there is a positive relationship between the degree of MPs' homophilous communication ties and the degree of political polarization observed in each network.... view less
Keywords
twitter; social network; social media; political communication; polarization; politician
Classification
Interactive, electronic Media
Political Process, Elections, Political Sociology, Political Culture
Free Keywords
Twitter; homophily; parliamentarians; political communication; political networks; political polarization
Document language
English
Publication Year
2022
Page/Pages
p. 81-92
Journal
Media and Communication, 10 (2022) 2
Issue topic
Networks and Organizing Processes in Online Social Media
ISSN
2183-2439
Status
Published Version; peer reviewed