4 IZA Discussion Papers
IZA Discussion Paper No. 15288
IZA Discussion Paper No. 10029
published in: Journal of the European Economic Association, 2017, 15 (3), 654 - 691
IZA Discussion Paper No. 9494
published in: Journal of Development Studies, 2020, 56 (11), 2000-2029
IZA Discussion Paper No. 6923
published in: World Bank Economic Review, 2015, 29 (2), 385-412