130 IZA Discussion Papers
IZA Discussion Paper No. 3173
published in: Journal of the Royal Statistical Society, Series A (Statistics in Society), 2009, 172 (2), 339-360
IZA Discussion Paper No. 3031
published in: Economics of Education Review, 2009, 28 (6), 716-727
IZA Discussion Paper No. 2794
published in: Economics Letters, 2008, 100(3), 405-407
IZA Discussion Paper No. 2508
published in: European Journal of Political Economy, 2008, 24 (3), 571-586
IZA Discussion Paper No. 2070
published in: Economica, 2007, 74 (293), 21-31
IZA Discussion Paper No. 2001
published in: American Economic Review, 2011, 101 (2), 556-590
IZA Discussion Paper No. 1957
published in: Industrial and Labor Relations Review, 2007, 60 (2), 246-267
IZA Discussion Paper No. 1662
revised version published in: Human Resource Management , 2006, 45 (1), 23-42
IZA Discussion Paper No. 1489
published in: Oxford Economic Papers, 2009, 61 (2), 207-239
IZA Discussion Paper No. 435
published in: International Journal of Manpower, 2006, 27 (2), 104-125