5 IZA Discussion Papers
IZA Discussion Paper No. 4806
published in: Industrial and Labor Relations Review, 2011, 64 (5), 1000-1019
IZA Discussion Paper No. 4760
published in: Scottish Journal of Political Economy, 2011, 58 (4), 490-518
IZA Discussion Paper No. 4502
revised version published in: Scottish Journal of Political Economy, 2013, 60 (2), 182-209.
IZA Discussion Paper No. 737
published in: Industrial and Labor Relations Review, 2003, 57 (1), 68-91
IZA Discussion Paper No. 352
published in: Southern Economic Journal, 2003, 69 (4), 822-841