384 IZA Discussion Papers
IZA Discussion Paper No. 465
revised version published in: Economic Journal, 2006, 116 (513), 659-679
IZA Discussion Paper No. 399
published in: Scandinavian Journal of Economics, 2006, 108 (3), 361-372
IZA Discussion Paper No. 371
published in: International Journal of Manpower, 2002, 23 (5), 458-470
IZA Discussion Paper No. 230
published in: Journal of Population Economics, 2003, 16 (2), 307-322