4 IZA Discussion Papers
IZA Discussion Paper No. 11225
published in: Labour Economics, 2018, 53, 198-212
IZA Discussion Paper No. 9125
published in: International Journal of Manpower, 2016, 37 (2), 229 - 252
IZA Discussion Paper No. 7253
published in: Journal of Comparative Economics, 2015, 43(2): 290-322
IZA Discussion Paper No. 5176
published in: Journal of Applied Econometrics, 2013, 28 (1), 1-46