10.2009: Interjurisdictional Competition and Public-Sector Modernisation - Theory and Empirics, Final Conference of the Priority Programme Institutional Design of Federal Systems of the German Research Foundation (DFG), Heidelberg
9.2009: Interjurisdictional Competition and Public-Sector Modernisation - Theory and Empirics, Verein für Socialpolitik, Magedeburg
7.2009: Interjurisdictional Competition and Public-Sector Modernisation - Theory and Empirics, International Data Envelopment Analysis Society (iDEAs), Philadelphia, USA
6.2009: Steuerwettbewerb als Differentialspiel, Forschungskolloquium des Instituts für Volkswirtschaftslehre, Universität Rostock
4.2009: Interjurisdictional Competition and Public-Sector Modernisation - Theory and Empirics, European Public Choice Society Annual Conference, Athens, Greece
11.2008: Interjurisdictional Competition and Public-Sector Modernisation - Theory and Empirics, Promotionskolloquium, Uni Rostock
10.2008: The Efficiency of the Public Sector and the Intensity of Interjurisdictional Competition - an Empirical Investigation, Workshop on the Efficiency of the Public Sector, ZEW Mannheim
8.2008: Fiscal Competition in Space and Time – an Endogenous Growth Approach, International Institute of Public Finance (IIPF), Maastricht, Netherlands
6.2008: The Efficiency of the Public Sector and the Intensity of Interjurisdictional Competition - an Empirical Investigation, DFG-SPP 1422 Summerschool on Fiscal Federalism in Bonn
5.2008: Dynamic Tax Competition and Public-Sector Modernisation, TU Dresden, Mittwochsseminar
11.2007: Fiscal Competition in Space and Time – an Endogenous Growth Approach, Forschungskolloquium des Instituts für Volkswirtschaftslehre, Universität Rostock (with Michael Rauscher)
7.2007: Fiscal Competition in Space and Time – an Endogenous Growth Approach, Annual Meeting of the Association of Public Economic Theory (Nashville TN, USA)
6.2007: Fiscal Competition in Space and Time – an Endogenous Growth Approach, II. Workshop on Fiscal Federalism: Competition and Cooperation among Governments (Sevilla, Spain)
2.2007: Fiscal Competition in Space and Time – an Endogenous Growth Approach, DFG-SPP 1422 Summerschool on Fiscal Federalism in Bonn (Bad Godesberg)
11.2006: Die Effizienz des öffentlichen Sektors: Ein internationaler Vergleich 1980-2000, Forschungskolloquium des Instituts für Volkswirtschaftslehre, Universität Rostock
8.2006: Dynamic Tax Competition and Public-Sector Modernisation, International Institute of Public Finance (IIPF), Paphos, Cyprus
6.2006: Tax Competition, Investment Cost, and Economic Growth, Workshop of the Priority Programme Institutional Design of Federal Systems of the German Research Foundation (DFG), Bonn
6.2006: Dynamic Tax Competition and Public-Sector Modernisation, ZEW Summer Workshop 2006 on EU-Countries in Fiscal Competition, Mannheim
4.2006: Dynamic Tax Competition and Public-Sector Modernisation, European Public Choice Society Annual Conference, Turku, Finland
7.2005: Tax Competition and Public-Sector Modernisation, Conference on Institutional Design of Federal Systems: Theory and Empirical Evindence, Regensburg
11.2004: Dynamic Tax Competition and Public-Sector Modernisation, 3. Finanzwissenschaftliches Seminar, Wissenschaftszentrum Berlin
11.2004: Dynamic Tax Competition and Public-Sector Modernisation, Forschungskolloquium des Instituts für Volkswirtschaftslehre, Universität Rostock
6.2004: Endogenes Wachstum, Kapitalmobilität und die Modernisierung des öffentlichen Sektors, DFG-SPP 1422 Summerschool on Fiscal Federalism in Bonn (Kloster Walberberg)
5.2004: Endogenes Wachstum, Kapitalmobilität und die Modernisierung des öffentlichen Sektors, Forschungskolloquium des Instituts für Volkswirtschaftslehre, Universität Rostock
3.2004: Factor Prices and Biased Technical Change in a Two Cone Trade Model, Göttinger Workshop Internationale Wirtschaftsbeziehungen