D12, H53, I32, Q25
C93 (Field Experiments); D12 (Consumer Economics: Empirical Analysis); H2 (Taxation, Subsidies
C93 Field Experiments,D12 Consumer Economics Empirical Analysis,Q53 Solid Waste • Recycling Q58
I21 — Analysis of Education O33 — Technological Change: Choices and Consequences; Diffusion
I21 – Analysis of Education: Education and Economic Development I28 – Education: Government Policy I31 – General Welfare, Well-Being
C93 – Field Experiments, D12 – Consumer Economics: Empirical Analysis, Q41 – Energy: Demand and Supply
R23, O16, I32, O33
O12, I32
I21 Analysis of Education
C93, I14, I32, I38, O12, O15