Cooperation Partners
- ETUI/Bruxelles, Belgium
- FAA/St. Gallen, Switzerland
- Facoltà di Economia del Lavoro, Università Cattolica del Sacro Cuore/Milano, Italy
- Faculty of Economics and Business/The University of Sydney, Australia
- FAFO/Oslo, Norway
- FAOS/Copenhagen, Denmark
- Graduate School of Management/Griffith University/Brisbane, Australia
- IRLE/University of California/Berkeley, USA
- IRRU/University of Warwick, UK
- SGB/Bern, Switzerland
- WSI/Düsseldorf, Germany
Editor and Member of Advisory Boards of Academic Journals
- Industrielle Beziehungen. Zeitschrift für Arbeit, Organisation und Management
(Advisory Board 1994-2004; Co-Editor 2004-2014) - British Journal of Industrial Relations An International Journal of Employment Relations (International Advisory Board 2000-2006)
- European Journal of Industrial Relations (International Advisory Panel)
- International Journal of Public Policy (Editorial Board)
- Journal of Industrial Relations (International Advisory Board 2001-2006; Associate Editor 2006-2015)
- Series "Modernisierung des öffentlichen Sektors" (Co-Editor 1994-2008)
- Series "Schriften zur europäischen Arbeits- und Sozialpolitik" (Co-Editor)
Expertises and Reports for Organisations
- Ministry of Labour and Social Affairs (MoLSA),Prague, Czech Republic
- Copenhagen Centre/Copenhagen, Denmark
- ILO/Geneva, Switzerland
- ILO-CEET/Budapest, Hungary
Expertises and Reports for Academies and Foundations
- Deutsch-Britische Stiftung für das Studium der Industriegesellschaft
- Deutsche Forschungsgemeinschaft (DFG)
- Deutsche Gesellschaft für Soziologie (DGS)
- Economic & Social Research Council (ESRC)
- Hans-Böckler-Stiftung
- VW-Stiftung
Expertises for Academic Journals
- British Journal of Industrial Relations
- Comparative Labor Law and Policy Journal
- Economic and Industrial Democracy: An International Journal
- European Journal of Industrial Relations
- European Union Politics
- Industrial Relations Journal
- Industrielle Beziehungen
- International Journal of Comparative Labour Law and Industrial Relations
- Kölner Zeitschrift für Soziologie und Sozialpsychologie
- Politische Vierteljahresschrift
- Zeitschrift für Wirtschafts- und Sozialwissenschaften
Editor of Books
- Atypische Beschäftigung - Flexibilisierung und soziale Risiken, Berlin 2007 (mit H.Seifert)
- Social Embedding and the Integration of Markets. An Opportunity for Transnational Trade Union Action or an Impossible Task?, Düsseldorf 2007 (with O.Jacobi, M.Jepsen, M.Weiss)
- European integration as a social experiment in a globalized world, Düsseldorf 2003 (mit R. Hoffmann, O.Jacobi, M. Weiss)
- Industrial relations and European integration, Aldershot 2003 (mit H.-W. Platzer)
- Strategic choices in reforming public service employment. An international handbook, Houndmills-New York 2001 (mit C.Dell’Aringa, G.Della Rocca)
- Transnational industrial relations in Europe, Düsseldorf 2000 (mit R.Hoffmann, O.Jacobi, M.Weiss)
- The German model of industrial relations between adaptation and erosion, Düsseldorf 1998 (mit R.Hoffmann, O.Jacobi, M.Weiss)
- Deregulierung am Arbeitsmarkt. Eine empirische Zwischenbilanz, Hamburg 1998 (mit H.Seifert)
- Arbeitsbeziehungen im öffentlichen Dienst Europas. Interessenvertretung und Mitbestimmung in der EU, Berlin 1997 (mit O.Jacobi)
- German industrial relations under the impact of structural change, unification and European integration, Düsseldorf 1995 (mit R.Hoffmann, O.Jacobi, M.Weiss)
- Atypische Beschäftigung. Verbieten oder gestalten? Köln 1995 (mit H.Seifert)
Active Participation in Congresses
- IIRA 10th Regional European Congress, Amsterdam/The Netherlands 2013 (invited paper)
- IIRA 9th European Regional Congress, Copenhagen/Denmark 2010 (rapporteurs' report for plenary track)
- IIRA 8th European Regional Congress, Manchester/UK 2007 (invited paper)
- Deutsche Vereinigung für Sozialwissenschaftliche Arbeitsmarktforschung, SAMF-Jahrestagung, Bonn 2007 (invited paper mit H.Seifert)
- German-Polish Symposium im Rahmen des SFB 580, Demography: A Challenge for the Public Sector, Universität Halle-Jena 2006 (invited paper)
- IIRA 14th World Congress, Lima/Peru 2006 (invited paper)
- ESA, 7th Conference of the European Sociological Association, Torun/Poland 2005 (invited paper)
- 21th EGOS Colloquium, Berlin 2005 (invited paper)
- LERA/IIRA 57th Annual Meeting, Philadelphia/USA 2005 (invited paper)
- IIRA 7th European Regional Congress, Lisbon/Portugal 2004 (invited paper)
- 32. Kongress der Deutschen Gesellschaft für Soziologie, München 2004 (Sektion Sozialpolitik)
- IIRA 13th World Congress, Berlin 2003 (coordinator of the scientific programme)
- 31. Kongress der Deutschen Gesellschaft für Soziologie, Leipzig 2002 (Juror und Leiter einer Plenarveranstaltung)
- IIRA-CIRA 4th Regional Congress of the Americas, Toronto/Canada 2002 (invited paper)
- ESA, Congress of the European Sociological Association, Helsinki/Finland 2001 (invited paper)
- IIRA, 6th European Regional Congress of the International Industrial Relations Association, Oslo/Norway 2001 (invited paper mit M.Bansbach)
- SASE, London/UK 2000 (invited paper mit M.Bansbach)
- IIRA 12th World Congress, Tokyo/Japan 2000 (invited planery paper)
- ESA, Congress of the European Sociological Association, Amsterdam/Netherlands 1998 (invited paper)
- 29. Kongress der Deutschen Gesellschaft für Soziologie/16. Kongress der Österreichischen Gesellschaft für Soziologie/11. Kongresses der Schweizerischen Gesellschaft für Soziologie, Freiburg i.Br. 1998 (Plenarvortrag)
- EGOS, Maastricht, The Netherlands 1998 (invited paper mit B.Sörries)
- IIRA 11th World Congress, Bologna, Italy 1998 (invited plenary paper)
- IIRA 5th European Regional Congress of the International Industrial Relations Association, Dublin, Ireland, 1997 (invited paper mit B.Sörries)
- IIRA 10th World Congress, Washington, D.C. 1995 (Rapporteur)
Appointments
- Member of the Executive Committee of the International Industrial Relations Association (IIRA)
- Chair of the Program Committee for the 13th World Congress of the International Industrial Relations Association (IIRA), Berlin 2003.
- Co-chair Study Group "Industrial relations in the public sector" of the International Industrial Relations Association (IIRA) (with Mark Thompson, Vancouver, B.C.)