3 IZA Discussion Papers
IZA Discussion Paper No. 15527
published in: Southern Economic Journal, 2023, 89 (3), 754-787
IZA Discussion Paper No. 11724
published in: Economics of Education Review, 2020, 78, 102036
IZA Discussion Paper No. 5904
published in: Social Science Research, 2011, 40 (5), 1292 - 1336