assessing party membership figures: the mapp dataset
Assessments of party decline and decline of traditional forms of political participation often rely on the argument of party membership decline. Most studies analysing trends in party membership over time focus on aggregate country-level data at a few points in time. While they allow grasping general membership trends, they are not without shortcomings. This article presents the Members and Activists of Political Parties (MAPP) dataset related to the MAPP project. The dataset makes a large amount of data on party membership available to the larger public. The dataset provides 6,307 party membership data observations (M) covering 397 parties in 31 countries, mostly between 1945 and 2014. The article discusses the existing literature and data on party membership trends, how membership trends have been assessed so far, and the potential added value of the MAPP dataset.
Keywordspolitical parties party membership party organisations
We would like to thank all country experts who contributed to the data collection: Baras Montserrat, Barberà Oscar, Barrio Astrid, Bennie Lynn, Bolin Niklas, Christophorou Christophoros, Correa Patricia, Cross William, Delwit Pascal, Ennser-Jedenastik Laurenz, Enyedi Zsolt, Espirito Santo Paula, Gauja Anika, Heidar Knut, Holsteyn Joop van, Ikstens Jānis, Indridason Indridi, Ionascu Alexandra, Jastramskis Mažvydas, Jupskås Anders Ravik, Kenig Ofer, Kocijan Bojana, Koole Ruud, Kosiara-Pedersen Karina, Krasovec Alenka, Ladner Andreas, Linek Lukas, Paczesniak Anna, Pettai Vello, Rahat Gideon, Ribeiro Pedro Floriano, Ridder Josje den, Rodriguez Teruel Juan, Sandri Giulia, Soare Sorina, Spier Tim, Voerman Gerrit, Weeks Liam, Westinen Jussi, Zemanik Michal. The MAPP project is supported by the Belgian Fonds National de la Recherche Scientifique (FRS-FNRS) via a MIS grant (Mandat d’Impulsion Scientifique – Incentive Grant for Scientific Research).
- Bartolini, S. (1983) ‘The Membership of Mass Parties: The Social Democratic Experience 1889–1978’, in H. Daalder and P. Mair (eds.) Western European Party System. Continuity and Change, Beverly Hills: Sage, pp. 177–220.Google Scholar
- Cross, W. (2015) ‘Party Membership in Canada’, in E. van Haute and A. Gauja (eds.) Party Members and Activists, London: Routledge, pp. 50–65.Google Scholar
- Dalton, R. and Wattenberg, M. (2000) Parties Without Partisans, Oxford: Oxford University Press.Google Scholar
- Delwit, P. (2011) ‘Still in Decline? Party Membership in Europe’, in E. van Haute (ed.) Party Membership in Europe. Explorations into the Anthills of Party Politics, Brussels: Editions de l’Université de Bruxelles, pp. 107–128.Google Scholar
- Katz, R.S., Mair, P., Bardi, L., Bille, L., Deschouwer, K., Farrell, D., Koole, R., Morlino, L., Müller, W., Pierre, J., Poguntke, T., Sunberg, J., Svasand, L., van de Velde, H., Webb, P. and Widfeldt, A. (1992) ‘The membership of political parties in European democracies, 1960-1990’, European Journal of Political Research 22(3): 329–345.CrossRefGoogle Scholar
- Kölln, A.-K. (2015) ‘The effects of membership decline on party organisations in Europe’, European Journal of Political Research, advance online publication 20 August. doi: 10.1111/1475-6765.12110.
- Kosiara-Pedersen, K., Scarrow, S. and van Haute, E. (forthcoming 2017) ‘Rules of Engagement? Party Membership Costs, New Forms of Party Affiliation, and Partisan Participation’, in S. Scarrow, P. Webb and T. Poguntke (eds.), Organizing Representation: Political Parties, Participation, and Power. Oxford: Oxford University Press.Google Scholar
- Marien, S. and Quintelier, E. (2011), ‘Trends in Party Membership in Europe. Investigation Into the Reasons for Declining Party Membership’, in E. van Haute (ed.) Party Membership in Europe. Exploration into the Anthills of Party Politics, Brussels: Editions de l’Université de Bruxelles, pp. 34–60.Google Scholar
- Mazzoleni, O. and Voerman, G. (2016) ‘Memberless parties. Beyond the business-firm party model?’, Party Politics, advance online publication 25 January. doi: 10.1177/1354068815627398.
- Pedersen, K. (2003) Party Membership Linkage: The Danish Case, København: Institut for Statskundskab, Københavns Universitet.Google Scholar
- Scarrow, S. (2000) ‘Parties without Members?’, in R. Dalton and M. Wattenberg (eds.) Parties Without Partisans. Political Change in Advanced Industrial Democracies, Oxford: Oxford University Press, pp. 79–101.Google Scholar
- Scarrow, S. (2015) Beyond Party Members. Changing Approaches to Partisan Mobilization, Oxford: Oxford University Press.Google Scholar
- Seyd, P. and Whiteley, P. (2004) ‘British Party Members: An Overview’, Party Politics 10(4): 355–366.Google Scholar
- Tan, A. (2000) Members, Organization and Performance: An Empirical Analysis of the Impact of Party Membership Size, Aldershot: Ashgate.Google Scholar
- van Haute, E. (2009) Party Membership in Europe: Exploration into the Anthills of Party Politics. Brussels: Editions de l’Université de Bruxelles.Google Scholar
- van Haute, E. (2015) ‘Joining isn’t Everything: Exit, Voice, and Loyalty in Party Organizations’, in R. Johnston and C. Sharman (eds.) Parties and Party Systems: Structure and Context. Vancouver: UBC Press, pp. 184–201.Google Scholar
- van Haute, E. and Gauja, A. (2015a) ‘Introduction: Party Membership and Activism’, in E. van Haute and A. Gauja (eds.) Party Members and Activists. London: Routledge, pp. 1–16.Google Scholar
- van Haute, E. and Gauja, A. (2015b) Party Members and Activists, London: Routledge.Google Scholar
- von Beyme, K. (1985) Political Parties in Western Democracies, York: St. Martin’s Press.Google Scholar
- Whiteley, P., Seyd, P. and Richardson, J. (1994) True Blues. The Politics of Conservative Party Membership, Oxford: Clarendon Press.Google Scholar
- Widfeldt, A. (1997) Linking Parties with People? Party Membership in Sweden 1960-1997. London: Routledge.Google Scholar