7 IZA Discussion Papers
IZA Discussion Paper No. 12733
forthcoming in: Journal of Human Capital, 2021
IZA Discussion Paper No. 6462
IZA Discussion Paper No. 6142
IZA Discussion Paper No. 4058
published in Journal of Labor Economics, 2013, 31 (3), 577-603.
IZA Discussion Paper No. 2204
revised version published in: Journal of Public Economics, 2009, 93, 965-973
IZA Discussion Paper No. 2072
IZA Discussion Paper No. 1901
published in: Economic Journal, 2006, 116 (510), C63-C76