Welcome to ERDDA.se
This site has been set up to present the comparative data collection efforts that have been undertaken by professor Torbjörn Bergman at Södertörn University, Stockholm, and his colleagues around the world. Webmaster is This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .
The main sponsor of the Data Archive has been Riksbankens jubileumsfond (In2007-0149:1-E and P2007-0370:1-E). From 2011 it will be sponsored by Östersjöstiftelsen (dnr A050-10).
SOME TEXTS ARE STILL WORK IN PROGRESS. SUGGESTIONS? PLEASE LET US KNOW!
Please select one of the projects to enter.
The Governments in Europe Data Archive [ongoing project]
The Governments in Europe project connects ten senior scholars in ten Baltic and East Central Europe countries with Södertörn University, Sweden, for the purpose of conducting cutting edge comparative research on the formation and stability of national governments. In particular, the project examines two aspects that in the region have not yet been the subject of scholarly inquiry: coalition governance and specific reasons for cabinet termination.
The European Representative Democracy Data Archive JUST PUBLISHED March 2012!
We can now present a new data set on European cabinets, parliaments and political parties. The data are collected for the study of some of the most important events in representative democracy: the formation and termination of governments. In addition, inspired by Peter Mair’s (1998: 86) statement in A New Handbook of Political Science (Oxford University Press) that “it must surely remain a priority for comparative research to stimulate the collection of systematically comparable data” we have resisted the temptation to code what we first found and instead double-checked multiple sources against each other to establish the best possible coding. In a novelty, we also include a “source file” for all of the entries in the data set.
NEW May 15, 2012. A new dissertation. For a long period of time Western parliamentary democracies were dominated by the same group of parties. In the famous words of Lipset and Rokkan (1967) the party systems of Western Europe had frozen. However, beginning in the 1970s the consolidated party systems started to melt. And nowadays new political parties are an important part of parliamentary democracy. In accordance with this development we can here present a new dataset on new party entrances in Western Europe.
The Comparative Parliamentary Democracy Data Archive NEW DATA ADDED March 2012!
The CPD program was devoted to comprehensive study of West European cabinets and informed by and contributed to coalition research. The various volumes produced within the CPD program describes every governing coalition, the parliamentary seat distribution, and the institutional rules under which the parliaments operated from the post-World War II beginning of 17 national regimes to 1999.
The Madisonian Turn - Nordic Politics Data Archive
This section present information on Nordic politics, such as information in tables, descriptive accounts of interesting aspects of Nordic politics, interviews with Nordic politicians and other useful information translated to English. For now, we share (1) information on the 2011 volume The Madisonian Turn, as well as (2) an recently completed research project about Swedish constitutional reforms and (3) a chronological account of how the Swedish electoral law has changed since World War II.