Q54, Q58, D72, D91
Q53, D10, C93
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
Q16, C93, D91
Q12, Q16, O33, D13, C93
I21 I22 I24 I28 H52 J45, F22
H23, D72, D83, D91, Q58
I15, J16
D80, D91
G510; G530; I380; D12; O12; C93