Q53
I11, O33, D83
A22 C93 I14 I24 J24 O33
C93 Field Experiments,D12 Consumer Economics Empirical Analysis,Q53 Solid Waste • Recycling Q58
Q50, Q53, Q54
Q12, Q15, Q18, C35, O13
O12; O13; Q56
C93, J23, J24, M51, O33
H23; H41; Q25; Q53; Q56
I21 — Analysis of Education O33 — Technological Change: Choices and Consequences; Diffusion