4 IZA Discussion Papers
IZA Discussion Paper No. 17078
IZA Discussion Paper No. 14945
IZA Discussion Paper No. 10152
published in: RAND Journal of Economics, 2023, 54 (1), 83 - 103
IZA Discussion Paper No. 4406
revised version published in: Journal of Economic Inequality, 2016, 14, 81 - 108