9 IZA Discussion Papers
IZA Discussion Paper No. 17380
IZA Discussion Paper No. 16959
IZA Discussion Paper No. 16918
IZA Discussion Paper No. 16686
IZA Discussion Paper No. 14906
IZA Discussion Paper No. 8425
published in: Research in Labor Economics, 2015, 1-33
IZA Discussion Paper No. 5512
published in: ILR Review, 2012, 65 (1), 148 - 160
IZA Discussion Paper No. 3957
revised version published in British Journal of Industrial Relations, 2012, 50 (3), 529-553
IZA Discussion Paper No. 3428
published in: Zeitschrift für ArbeitsmarktForschung/Journal for Labour Market Research, 2008, 41 (2-3), 157-180.