3 IZA Discussion Papers
IZA Discussion Paper No. 11682
published in: Economics of Education Review, 2021,83, 102129.
IZA Discussion Paper No. 7314
published in: Journal of Public Economics, 2017, 152, 154-169
IZA Discussion Paper No. 6208
published in: Journal of Public Economics, 2013, 97 (C), 308-326