Judicial Politics in the European Union: Its Impact on National Opportunity Structures for Gender Equality. MPIfG Discussion Paper 99/2. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1999.

Il sistema italiano di concertazione sociale: Problemi aperti e prospettive di evoluzione. Working PaperCleveland, OH: Weatherhead School of Management, 1999.

Economic Action and Embeddedness: The Problem of the Structure of Action. Working Paper wps-2000-01. 1999.

Interest Groups in a Multi-level Polity: The Impact of European Integration on National Systems. EUI Working Paper: Robert Schumann CenterFlorenz: European University Institute, 1999.

Prospects for Inclusive Social Citizenship in an Age of Structural Inactivity. MPIfG Working Paper 99/1. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1999.

Vom koordinierten zum marktorientierten Kapitalismus? Der deutsche Finanzsektor im Umbruch. Polis 44. Hagen: Institut für Politikwissenschaft der FernUniversität Hagen, 1999.

The Uneasy Compromise of Liberalism and Corporatism in Postwar Germany. CGES Working PaperBerkeley: University of California Center for German and European Studies, 1999.

The Organization of Business Interests: Studying the Associative Action of Business in Advanced Industrial Societies. MPIfG Discussion Paper 99/1. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1999.

The Differential Impact of Judicial Politics in the Field of Gender Equality: Three National Cases Under Scrutiny. EUI Working Papers: Robert Schuman CentreSan Domenico: European University Institute, 1999.

Linked Games, International Organisations and Agricultural Trade. MPIfG Discussion Paper 98/8. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

Internationalization and Financial Federalism: The United States and Germany at the Crossroads?. MPIfG Discussion Paper 98/7. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

European Social Policy between National and Supranational Regulation: Posted Workers in the Framework of Liberalized Services Provision. MPIfG Discussion Paper 98/6. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

Wenn Banken sich vergessen ...: Risikoregulierung im internationalen Mehr-Ebenen-System. MPIfG Discussion Paper 98/5. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

An Evolutionary Dynamic of Trade Union Systems. MPIfG Discussion Paper 98/4. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

Tax Competition in the European Union. MPIfG Discussion Paper 98/3. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

Interdependence and Democratic Legitimation. MPIfG Working Paper 98/2. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

The Internationalization of Industrial Relations in Europe: Prospects and Problems. MPIfG Discussion Paper 98/2. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.

Public Policy in a Private Arena: The Case of Vocational Education and Training. Estudio/Working PapersFlorence: European University Institute, 1998.

When Institutions Matter: Union Growth and Decline in Western Europe, 1950-95. Mannheimer Zentrum für Europäische Sozialforschung: ArbeitspapiereMannheim: Mannheimer Zentrum für Europäische Sozialforschung Universität Mannheim, 1998.

Markt und Staat in Europa. MPIfG Working Paper 98/1. Köln: Max-Planck-Institut für Gesellschaftsforschung, 1998.