O11, O13, O33, Q16, D83, D91
C93, I24, I25, F63, H52, J13, L31, O15, P36
C91, D83, D91
C93, D83, F13
D70, D83, K00, Z10
C91, D83
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
C93, I21, I22, I25, I28, O12
O13, O33