4 IZA Discussion Papers
IZA Discussion Paper No. 7639
published in: J. Aurini, S. Davies and J. Dierkes (eds.), Out of the Shadows: The Global Intensification of Supplementary Education, 2014, 23-66
IZA Discussion Paper No. 3471
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. 1255
revised version published as 'Demand for education in Turkey: A tobit analysis of private tutoring expenditures' in: Economics of Education Review, 2006, 25, 303-313