C91, D81, D91
Health, Education, and Welfare, Microeconomics
D12, D83, D91, L86
D91; J22; J24; J31; M52
C93, D91, I12, M52
Q01 Sustainable Development, Q23 Forestry, Q57 Ecological Economics: Ecosystem Services, Q58 Government Policy
D91, I190
J16, D73, D91
A22, C93, D91, I23, J0
C91, D91