30 IZA Discussion Papers
IZA Discussion Paper No. 5585
IZA Discussion Paper No. 5241
IZA Discussion Paper No. 4414
published in: Economic Journal, 2010, 120 (544), 573-594
IZA Discussion Paper No. 4390
IZA Discussion Paper No. 4354
revised version published in: World Development, 2012, 40 (2), 428 - 435
IZA Discussion Paper No. 3812
published in: Economics Letters, 2011, 110(3), 213-215
IZA Discussion Paper No. 2717
published in: Economic Journal, 2007, 117 (521), F441-F459
IZA Discussion Paper No. 2658
IZA Discussion Paper No. 2218
published in: Journal of Public Economics, 2007, 91 (7-8), 1423-1448
IZA Discussion Paper No. 1329
published in: Journal of Economic Inequality, 2007, 5 (1), 39-51
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