4 IZA Discussion Papers
IZA Discussion Paper No. 16357
IZA Discussion Paper No. 16165
published in: American Economic Journal: Applied Economics, 2024, 16 (3), 178–218
IZA Discussion Paper No. 13552
IZA Discussion Paper No. 8240
published in: Industrial and Labor Relations Review, 2015, 68 (4), 771 - 806