25 IZA Discussion Papers
IZA Discussion Paper No. 6468
IZA Discussion Paper No. 5969
IZA Discussion Paper No. 5701
Journal of Economic Inequality, 2013, 11 (1), 1-34,
IZA Discussion Paper No. 4537
IZA Discussion Paper No. 2790
published in: Review of Economics and Statistics, 2008, 90 (2), 191-215
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