D11, D12, D91, C93, G51, O33
D12, D83, H42, I12, O33, Q54.
Q50, Q53, Q54
O12 (Microeconomic Analyses of Economic Development); O13 (Agriculture; Natural Resources); D12
C91, D82, H57, M42, Q56
Q53
C83, D12, Q13, Q51, D83
D73, H83, Q58, M11, C93
Q51, Q52, Q53
I11, I12, I18, D12, D83, C91, C93