4 IZA Discussion Papers
IZA Discussion Paper No. 11107
published in: Journal of Labor Economics, 2019, 37 (1), 101-137
IZA Discussion Paper No. 9754
published in: Labour Economics, 2017, 49, 27-41
IZA Discussion Paper No. 7491
revised version published in: Labour Economics, 2014, 30, 201-211
IZA Discussion Paper No. 1329
published in: Journal of Economic Inequality, 2007, 5 (1), 39-51