3 IZA Discussion Papers
IZA Discussion Paper No. 14651
IZA Discussion Paper No. 13157
revised version published online as 'What can explain the socio-economic gap in international student mobility uptake? Similarities between Germany, Hungary, Italy and the UK' in: European Education Research Journal, 8 December 2022
IZA Discussion Paper No. 12033
revised version published in: Higher Education 2021, 82, 1173-1194.