105 IZA Discussion Papers
IZA Discussion Paper No. 1883
published in: Economic Journal, 2009, 119 (540), 1243-1269.
IZA Discussion Paper No. 1617
published in: Journal of Public Economics, 2013, 97, 131-143
IZA Discussion Paper No. 1306
IZA Discussion Paper No. 1295
published as 'Effect of Secondary School Fees on Educational Attainment' in: Scandinavian Journal of Economics, 2012, 114 (1), 147 - 176
IZA Discussion Paper No. 1091
published in: Labour Economics, 2007, 14 (2), 201-230