6 IZA Discussion Papers
IZA Discussion Paper No. 12799
IZA Discussion Paper No. 5672
published in: Schmollers Jahrbuch, 2011, 131 (1), 59-71
IZA Discussion Paper No. 3918
published in: Industrial Relations, 2011, 50 (2), 354-374
IZA Discussion Paper No. 878
published in: British Journal of Industrial Relations, 2004, 42 (2), 255-281
IZA Discussion Paper No. 648
published in: Applied Economics Letters, 2004, 11 (3), 159–161
IZA Discussion Paper No. 422
published in: Industrial Relations, 2004, 43 (2), 392-420