5 IZA Discussion Papers
IZA Discussion Paper No. 12094
IZA Discussion Paper No. 11973
published in: Observational Studies, 2022, 8 (1), 1- 44
IZA Discussion Paper No. 11864
published in: Journal of Business and Economic Statistics, 2020, 38 (4), 901 - 920
IZA Discussion Paper No. 5564
IZA Discussion Paper No. 4237