since 2010: Professor of Economics, esp. Industrial Economics and Applied Microeconometrics, Faculty of Management, Economics and Social Sciences, University of Cologne
since 2010: Director, Center for Macroeconomic Research (CMR), University of Cologne
09-12/2009: Visiting Scholar, Dept. of Economics, Harvard University, Cambridge (MA)
2009-2010: Senior Research Fellow (W2), MPI for Research on Collective Goods, Bonn
09-10/2006: Visiting Fellow, Institute for Fiscal Studies, London, UK
2004-2009: Research Fellow, Research Area: Markets and Politics, Social Science Research Center Berlin (WZB)
2002-2003: Marie Curie-Researcher, Dept. of Economics, University College London, UK
2002-2003: Assistant Professor (C1), Dept. of Economics, University of Mannheim (partly on leave)
2002 Ph.D. in Economics (Dr. rer. pol.), University of Mannheim
1996-2002: Research and Teaching Assistant, Dept. of Economics, University of Mannheim
1995 M.Sc. in Economics (Diplom, VWL), University of Mannheim (studies at Johannes Gutenberg-University Mainz, University of Mannheim, Université Catholique de Louvain (Belgium))