3 IZA Discussion Papers
IZA Discussion Paper No. 9901
published in: European Economic Review, 2018, 107, 86–98
IZA Discussion Paper No. 4343
published in: Economic Journal, 2011, 121 (556), 449-475
IZA Discussion Paper No. 1583
published in: Journal of the European Economic Association, 2012, 10 (3), 555-572