Parties, Institutions and Preferences (PIP)

Our PIP-data sets provide detailed information about political parties, institutions (e.g. 1st and 2nd chambers) and the preferences of political actors. Specific indicators suitable for Time-Series—Cross-Sectional (TSCS) data analysis have been developed by a research team of the University of Greifswald. The data cover important aspects of macro-comparative politics and were compiled from other data sources in the political sciences.

Project Team:
Principal investigator: Prof. Dr. Detlef Jahn
Researcher: Nils Düpont; Christoph Oberst; Thomas Behm
Graduate Researcher: Tim Grafe
Former Graduate Research Members: Alexander Horn, Lena Masch

The data can be found here.

Data Sources:

Budge, Ian, Hans-Dieter Klingemann, Andrea Volkens, Judith Bara, and Eric Tanenbaum. 2001. Mapping Policy Preferences: Estimates for Parties, Electors, and Governments 1945 - 1998. Oxford: Oxford University Press.

European Journal of Political Research. "Political Data in..." Various Issues.

Klingemann, Hans-Dieter, Andrea Volkens, Judith L. Bara, Ian Budge, and Michael D. McDonald. 2006. Mapping Policy Preferences II: Estimates for Parties, Electors, and Governments in Eastern Europe, European Union and OECD 1990 - 2003. Oxford: Oxford University Press.

Volkens, Andrea, Onawa Lacewell, Sven Regel, Henrike Schultze, and Annika Werner. 2011. The Manifesto Data Collection. Manifesto Project (MRG/CMP/MARPOR). Berlin: Wissenschaftszentrum Berlin für Sozialforschung (WZB).

Woldendorp, Jaap, Hans Keman, and Ian Budge. 2000. Party Government in 48 Democracies (1945 - 1998). Composition - Duration - Personnel. Dordrecht: Kluwer.

Various National Sources.


Jahn, Detlef and Christoph Oberst. 2012 "Ideological Party Cohesion in Macro-Comparative Politics: The Nordic Social Democratic Parties from a Comparative Perspective." Scandinavian Political Studies 35 (3): 222–45.

Jahn, Detlef. 2011. "Conceptualizing Left and Right in Comparative Politics: Towards a Deductive Approach." Party Politics 17 (6): 754–65.

Jahn, Detlef. 2010. "The Veto Player Approach in Macro-Comparative Politics: Concepts and Measurements." In Reform Processes and Policy Change: Veto Players and Decision-Making in Modern Democracies, eds. Thomas König, George Tsebelis, and Marc Debus. New York: Springer, 43-68.

Working papers

Jahn, Detlef. 2010. "Mapping Political Dimensions from Party Manifesto Data." University of Greifswald. Unpublished Manuscript.

Jahn, Detlef and Christoph Oberst. 2009. "Cohesion of Nordic Parties in Comparative Perspective." Presented at the 5th ECPR General Conference, Potsdam.

Jahn, Detlef. 2009. The Veto Player Approach in Macro-Comparative Politics: Concepts and Measurement." Author’s final manuscript. Accepted version of the journal article, incorporating any revisions agreed during the peer review process. Some differences between this version and the published version may remain. You are advised to consult the publisher’s version if you wish to cite from it.