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Political Polarization and Cabinet Stability in Multiparty Systems: A Social Networks Analysis of European Parliaments, 1945–98

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  • Maoz, Zeev
  • Somer-Topcu, Zeynep

Abstract

Bargaining theory predicts that as a political system’s polarization increases, parties have fewer opportunities to form coalitions without resorting to elections, inducing constraints on the management of political crises. This study tests the hypothesis that political polarization has a positive effect on cabinet duration, and draws on Social Networks Analysis to conceptualize and measure political polarization. Combining information about party ideology, inter-party distances and party size, this polarization index measures the structure of political systems in terms of possible and actual coalitions, and identifies proto-coalitions ex ante. The propositions regarding the effect of the bargaining environment on cabinet survival are tested with data covering sixteen European states in 1945–99, and are fairly robustly supported. The measure of political polarization outperforms alternative measures of this concept.

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  • Maoz, Zeev & Somer-Topcu, Zeynep, 2010. "Political Polarization and Cabinet Stability in Multiparty Systems: A Social Networks Analysis of European Parliaments, 1945–98," British Journal of Political Science, Cambridge University Press, vol. 40(4), pages 805-833, October.
    • Handle: RePEc:cup:bjposi:v:40:y:2010:i:04:p:805-833_00
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    Cited by:

    1. Huremović, Kenan & Ozkes, Ali I., 2022. "Polarization in networks: Identification–alienation framework," Journal of Mathematical Economics, Elsevier, vol. 102(C).
    2. Irena Valková, 2017. "Centrality in the network of Regional Trade Agreements: Effects on the strategies of the Arctic claimant states," International Area Studies Review, Center for International Area Studies, Hankuk University of Foreign Studies, vol. 20(2), pages 122-143, June.
    3. Royce Carroll & Hiroki Kubo, 2018. "Polarization and ideological congruence between parties and supporters in Europe," Public Choice, Springer, vol. 176(1), pages 247-265, July.
    4. Jacques Simon Song, 2021. "Le rôle des clivages des partis politiques dans le renforcement de la démocratie en Afrique," African Development Review, African Development Bank, vol. 33(1), pages 91-103, March.

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