O12, O13, O15, Q01
I25, I26
I20, I28, M5, O32
D1, I3, J2, J13
C93, I20, I28, O15
C90,D39,D83,H50,I14,I18
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
D2, Q1, Q5
D0, H5, H6, I38
I21 I22 I24 I28 H52 J45, F22