5 IZA Discussion Papers
IZA Discussion Paper No. 12579
forthcoming in: Labour Economics, 2019
IZA Discussion Paper No. 9135
IZA Discussion Paper No. 5327
published in: Labour Economics, 2012, 19 (2), 165-175.
IZA Discussion Paper No. 965
published in: American Economic Review, 2007, 97 (4), 1419 - 1431
IZA Discussion Paper No. 381
published in: Journal of Labor Research, 2003, 24 (1), 85-129