4 IZA Discussion Papers
IZA Discussion Paper No. 12451
published in: Journal of Human Resources, 2022, 57 (1), 112-142
IZA Discussion Paper No. 7605
IZA Discussion Paper No. 2665
published in: The B.E. Journal of Economic Analysis and Policy: Advances in Economic Analysis and Policy, 2007, 7 (2), Article 4
IZA Discussion Paper No. 1739
published in: Quarterly Journal of Economics, 2006, 121 (3), 999-1028