6 IZA Discussion Papers
IZA Discussion Paper No. 15878
IZA Discussion Paper No. 15294
IZA Discussion Paper No. 15133
IZA Discussion Paper No. 12494
published in: Oxford Bulletin of Economics and Statistics, 2021, 83(3), 590-618
IZA Discussion Paper No. 6597
IZA Discussion Paper No. 4870
published in: Labour Economics, 2010, 17 (5), 868-874