O13 — Economic Development: Agriculture; Natural Resources; Energy; Environment; Other Primary

Economics: Empirical Analysis C93 — Field Experiments Q56 — Environment and Development

O33, C93, M53, D91, J24

I21, J24, C93

J24, O33, D91, J22

K42, J24, I24, I21

of Welfare Programs) H75 (State and Local Government • Health • Education • Welfare • Public Pensions • Intergovernmental Relations)

J24, L86, O31, O32, O33, D81, D83, M13

Education and Economic Development

21, J24, C93

J24, J62, J64