4 IZA Discussion Papers
IZA Discussion Paper No. 15622
IZA Discussion Paper No. 12051
published in: Journal of Human Resources, 2020, 55 (4), 1400-1426
IZA Discussion Paper No. 11842
published in: Journal of Human Resources, 2023, 58 (6), 1850-1880
IZA Discussion Paper No. 3785
published in: American Economic Journal: Economic Policy, 2010, 2 (2), 185-215