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
C93, D12, H23, I138
C90, D43, D12, D83
C25, D12; D61; I12
I21 Analysis of Education