3 IZA Discussion Papers
IZA Discussion Paper No. 13847
published in: Journal of Economic Behavior & Organization, 2020, 180, 494-509
IZA Discussion Paper No. 10394
revised version published in: European Economic Review, 2018, 101, 567-604
IZA Discussion Paper No. 10308
revised version published in: Review of Development Economics, 2022, 26 (4), 1902 - 1943