8 IZA Discussion Papers
IZA Discussion Paper No. 3822
published in: Economics Bulletin, 2009, 29 (3), 1846-1853
IZA Discussion Paper No. 3098
IZA Discussion Paper No. 2897
published in: Applied Economics, 2010, 42 (16), 2091-2098
IZA Discussion Paper No. 2823
published in: Economics of Education Review, 2014, 42, 78-92
IZA Discussion Paper No. 2651
IZA Discussion Paper No. 1700
published in: E. Hanushek and F. Welch, eds., Handbook of the Economics of Education, North Holland: Amsterdam, 2006, 307-458
IZA Discussion Paper No. 1446
IZA Discussion Paper No. 508
published in: Econometrica, 2002, 70 (2), 2078-2091