4 IZA Discussion Papers
IZA Discussion Paper No. 11166
published in: Economics of Education Review, 2019, 72, 204–218
IZA Discussion Paper No. 11079
IZA Discussion Paper No. 10012
published in: Economic Inquiry; 2018, 56 (1), 252 - 262
IZA Discussion Paper No. 7143
published in: Review of Economics of the Household, 2014, 12 (1), 29-50