I21 – Analysis of Education: Education and Economic Development I28 – Education: Government Policy I31 – General Welfare, Well-Being
D12, D81, D91
Labor and Demographic Economics Education and Research Institutions
Q41, D12, Q48, O13, C93
C93 – Field Experiments, D12 – Consumer Economics: Empirical Analysis, Q41 – Energy: Demand and Supply
D12, O12, Q54
Q23 (Forests; Forestry), Q57 (Ecological Economics; Ecosystem Services; Biodiversity Conservation
D12, E52, E58
J71, C90, D12
Q41, Q48, Q52, R21, D12