4 IZA Discussion Papers
IZA Discussion Paper No. 16284
IZA Discussion Paper No. 13108
revised version published in: Journal of Public Economics, 2022, 210, 104660
IZA Discussion Paper No. 10393
published in: Journal of Economics and Management Strategy, 28(4), 687-712, 2019.
IZA Discussion Paper No. 7652
published in: Labour Economics, 2014, 28, 1-13