130 IZA Discussion Papers
IZA Discussion Paper No. 994
published in: Economics Letters, 2005, 88 (1), 109-114
IZA Discussion Paper No. 976
published in: American Economic Review, 2004, 94 (5), 1613-1634
IZA Discussion Paper No. 746
published in: Economics of Education Review, 2005, 24 (5), 579-599
IZA Discussion Paper No. 745
published in: German Economic Review, 2005, 6 (3), 331-353
IZA Discussion Paper No. 744
published in: European Journal of Political Economy, 2006, 22 (4), 944-968
IZA Discussion Paper No. 716
published in: Journal of Applied Econometrics, 2009, 24 (2), 338-365.
IZA Discussion Paper No. 677
IZA Discussion Paper No. 485
published in: European Economic Review, 2006, 50 (3), 695-736
IZA Discussion Paper No. 261
published in: Scandinavian Journal of Economics, 2005, 107 (2), 375-394
IZA Discussion Paper No. 218
published in: Journal of Business and Economic Statistics, 2004, 22 (3), 312-321