4 IZA Discussion Papers
IZA Discussion Paper No. 17799
IZA Discussion Paper No. 16056
published in: American Economic Journal: Economic Policy, 2024, 16 (4), 194 - 222
IZA Discussion Paper No. 14830
revised version published in: American Economic Journal: Economic Policy, 2025, 17 (1), 432- 463
IZA Discussion Paper No. 11475