The roles actors play in policy networks: Central positions in strongly institutionalized fields

Ingold, Karin; Fischer, Manuel; Christopoulos, Dimitris (2021). The roles actors play in policy networks: Central positions in strongly institutionalized fields. Network science, 9(2), pp. 213-235. Cambridge University Press 10.1017/nws.2021.1

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Centralities are a widely studied phenomenon in network science. In policy networks, central actors are of interest because they are assumed to control information flows, to link opposing coalitions and to directly impact decision-making. First, we study what type of actor (e.g., state authorities or interest groups) is able to occupy central positions in the highly institutionalized context of policy networks. Second, we then ask whether bonding or bridging centralities prove to be more stable over time. Third, we investigate how these types of centrality influence actors’ positions in a network over time. We therefore adopt a longitudinal perspective and run exponential random graph models, including lagged central network positions at t1 as the main independent variable for actors’ activity and popularity at t2. Results confirm that very few actors are able to maintain central positions over time.

Item Type:

Journal Article (Original Article)


03 Faculty of Business, Economics and Social Sciences > Social Sciences > Institute of Political Science
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)

UniBE Contributor:

Ingold, Karin Mirjam


300 Social sciences, sociology & anthropology > 320 Political science




Cambridge University Press




Jack Kessel Baker

Date Deposited:

05 May 2021 15:46

Last Modified:

30 May 2021 03:06

Publisher DOI:



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