C93, D83, J64
C93 - Field Experiments; H52 - Government Expenditures and Education; I21 - Analysis of Education
Q54, G52, C93, D83
O31; O32; O33; O34; O38; Q55; D22
C93, D01, D90, D91
C93, K14, K42, I12, I31, J01
J16, C93
I30, I38, J13, C91, C93
C93, J22, J23, O13, O33, Q12, Q13, Q14, Q16, Q54
C93, D73, J15, H75, I24