7 IZA Discussion Papers
IZA Discussion Paper No. 17302
IZA Discussion Paper No. 17258
IZA Discussion Paper No. 16847
IZA Discussion Paper No. 14421
IZA Discussion Paper No. 13218
revised & extended version published in: Journal of Economic Behavior and Organization, 2020, 180, 201-218
IZA Discussion Paper No. 8975
published in: American Economic Review, 2015, 105 (5), 346–351
IZA Discussion Paper No. 8096
published in: Review of Economics and Statistics, 2017, 99(4), 577-590