7 IZA Discussion Papers
IZA Discussion Paper No. 15255
IZA Discussion Paper No. 14794
IZA Discussion Paper No. 8667
IZA Discussion Paper No. 8533
published in: European Economic Review, 2015, 78, 248-268.
IZA Discussion Paper No. 5186
IZA Discussion Paper No. 2671
published in: Economica, 2010, 78 (309), 159-186
IZA Discussion Paper No. 1129