4 IZA Discussion Papers
IZA Discussion Paper No. 13701
published in: Journal of Policy Analysis and Management, 2022, 41 (4), 1012-1039.
IZA Discussion Paper No. 9270
IZA Discussion Paper No. 440
revised version published in: International Economic Review, 2005, 46 (4), 1103-1142
IZA Discussion Paper No. 315