April 01, 1979 article Open access “Effective” Number of Parties Comparative Political Studies DOI: 10.1177/001041407901200101 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 7 stored of 3,467 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Opposition Distinctiveness in Parliaments: A Longitudinal Analysis 2026 Government and Opposition article Social Sciences Electoral Systems and Political Participation Open access 0 citations Parliamentary Staff Size Around the World 2025 Legislative Studies Quarterly article Social Sciences Public Administration and Governance Open access 1 citations Exploring Party Switching in East-Central European Legislatures 2024 Routledge eBooks book Social Sciences Electoral Systems and Political Participation Open access 0 citations Relations between local councillors and executive boards: conceptualisations, explanations and empirical evidence from the Netherlands 2024 Local Government Studies article Social Sciences Public Policy and Administration Research Open access 1 citations Parliamentary Election in Netherlands, 17 March 2021 2021 BLUE article Social Sciences Electoral Systems and Political Participation Open access 0 citations How instability creates stability: the survival of democracy in Vanuatu 2021 Third World Quarterly article Social Sciences Political Conflict and Governance Open access 10 citations Political party ideology and immigration policy reform: an empirical enquiry 2020 Political Research Exchange article Social Sciences Migration, Refugees, and Integration Open access 62 citations 7 results References 0