I24, J24, D91, C90
I21, I24, J24, I26
C91, J24, L23
C93 Field Experiments; I21 Analysis of Education; I22 Educational Finance; I25 Education and Economic Development
D83, I29, J24, O33
J22, J24, D91
I21; J24
C93, J24, J16, I24
C93, I21, I24, J24, O15
of Welfare Programs) H75 (State and Local Government • Health • Education • Welfare • Public Pensions • Intergovernmental Relations)