I25 Education and Economic Development; I15 Health and Economic Development
I21, I25, I28
O1, I20
D22,D83,I20,J20,O31,L25,L26,M13,M53
O12, O15, H44, H52, I22, I25, I28
I25, I26
I20, I28, M5, O32
C93, I20, I28, O15
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
I21 I22 I24 I28 H52 J45, F22