3 IZA Discussion Papers
IZA Discussion Paper No. 9623
published in: Journal of the European Economic Association, 2021, 19 (5), 2467–2512
IZA Discussion Paper No. 7561
published in: American Economic Review, 2016, 106 (8), 2349-70
IZA Discussion Paper No. 3348
published in: American Economic Journal: Economic Policy, 2011, 3 (3), 144-174