4 IZA Discussion Papers
IZA Discussion Paper No. 14003
published in: Journal of Human Resources, 2022, 57 (5), 1715 - 1757
IZA Discussion Paper No. 8405
published in: Journal of Econometrics, 2017, 200 (2), 344-362
IZA Discussion Paper No. 7457
published in: Empirical Economics, 2015, 48, 83-141
IZA Discussion Paper No. 1098
published in: Journal of Applied Econometrics, 2005, 20 (6), 771-795