7 IZA Discussion Papers
IZA Discussion Paper No. 17078
IZA Discussion Paper No. 15788
IZA Discussion Paper No. 15325
IZA Discussion Paper No. 14348
IZA Discussion Paper No. 12335
IZA Discussion Paper No. 8388
published in: Research in Labor Economics, 2015, 40, 213-275
IZA Discussion Paper No. 5484
published in: Journal of Public Economic Theory, 2013, 15 (1), 77-93