3 IZA Discussion Papers
IZA Discussion Paper No. 9541
published in: Journal of Development Studies, 2016, 52 (12), 1810-1825.
IZA Discussion Paper No. 7867
published in: Social Inclusion, 2017, 5 (2), 39 - 58
IZA Discussion Paper No. 1035
published in: European Economic Review, 2005, 49 (1), 55-73