CPB Netherlands Bureau for Economic Policy Analysis
1985, degree in Economics, University of Amsterdam; 1990, PhD. 1995, Head, Department of Income Policy, Ministry of Social Affairs; Professor of Labour Economics, University of Amsterdam. 1998-2004, Director, Tinbergen Institute; Professor, University of Rotterdam. 2004-06, Director, SEO Economic Research. Professor of Economics, University of Amsterdam. Crown Member, Social Economic Council. 2004, co-writer for the new principle programme of the PvdA.