426 IZA Discussion Papers
IZA Discussion Paper No. 60
IZA Discussion Paper No. 43
IZA Discussion Paper No. 42
published in: Journal of Human Resources, 2001, 36 (1), 1-30
IZA Discussion Paper No. 21
published in: Review of Economics of the Household, 2003, 1 (1-2), 77-110
IZA Discussion Paper No. 19
published in: Journal of Population Economics 2000, 13 (1), 57-79
IZA Discussion Paper No. 3