6 IZA Discussion Papers
IZA Discussion Paper No. 2466
published in: Journal of Human Resources, 2008, 43 (4), 815-858
IZA Discussion Paper No. 2195
IZA Discussion Paper No. 1709
published in: Economic Journal, 2006, 116 (509), F45-F72
IZA Discussion Paper No. 1494
published in: Industrial and Labor Relations Review, 2014, 67 (2), 287-334
IZA Discussion Paper No. 1107
published in: European Economic Review, 2007, 51 (3), 715-748
IZA Discussion Paper No. 685
published in: Labour, 2006, 20 (3), 505-532