155 IZA Discussion Papers
IZA Discussion Paper No. 260
published in: Labour Economics, 2002, 9 (1), 63-91
IZA Discussion Paper No. 244
IZA Discussion Paper No. 205
published in: Economic Journal, 2002, 112 (480), F585-606
IZA Discussion Paper No. 144
published in: Jonas Agell, Michael Keen and Alfons Weichenrieder (eds.), Labor Market Institutions and Public Regulation, 2004, 101-122
IZA Discussion Paper No. 139
published in: Jahrbücher für Nationalökonomie und Statistik, 2008, 228 (5-6), 446-464, (Special Issue: Labormetrics)