23 IZA Discussion Papers
IZA Discussion Paper No. 1422
published in: World Economy, 2008, 31 (2), 187-211
IZA Discussion Paper No. 1410
published in: De Economist, 2005, 153 (4), 425-450
IZA Discussion Paper No. 1410
published in: De Economist, 2005, 153 (4), 425-450
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