484 IZA Discussion Papers
IZA Discussion Paper No. 419
published in: Journal of Human Resources, 2004, 39 (3), 649-674
IZA Discussion Paper No. 392
published in: R. Muffels, P. Tsakloglou and D. Mayes (eds.), Social Exclusion in European Welfare States, Edward Elgar, Cheltenham, 2002, pp. 135-169
IZA Discussion Paper No. 300
published in: Journal of the European Economic Association, 2004, 2 (4), 696-719
IZA Discussion Paper No. 224
published in: Review of Income and Wealth, 2003, 49 (3), 359-372