4 IZA Discussion Papers
IZA Discussion Paper No. 13560
IZA Discussion Paper No. 13273
revised version published in: Empirical Economics, 2022, 63, 2785 - 2815
IZA Discussion Paper No. 10407
revised version published in: Journal of Economic Behavior & Organization, 2020, 177, 548-568
IZA Discussion Paper No. 8578