51 IZA Discussion Papers
IZA Discussion Paper No. 1848
revised version published in: Journal of Applied Econometrics, 2009, 24 (5), 797-823
IZA Discussion Paper No. 1684
published in: German Economic Review, 2007, 8 (4), 468-509
IZA Discussion Paper No. 1519
published in: Labour Economics, 2011, 18 (4), 474-486
IZA Discussion Paper No. 1177
IZA Discussion Paper No. 1098
published in: Journal of Applied Econometrics, 2005, 20 (6), 771-795
IZA Discussion Paper No. 1078
IZA Discussion Paper No. 1042
IZA Discussion Paper No. 843
published in: T. Kehoe, T.N. Srinivasan, and J. Whalley (eds.)- Frontiers in Applied General Equilibrium, Cambridge, 2005, 277 - 340
IZA Discussion Paper No. 801
IZA Discussion Paper No. 418
published as 'Developing an immigration policy for Germany on the basis of a nonparametric labor market classification' in: Allgemeines Statistisches Archiv /Journal of the German Statistical Society, 2004, 88(1), 1-22
IZA Discussion Paper No. 211
published in: Journal of Econometrics, 2002, 107 (1-2), 345-374