O33
O33, J24, F42
I12, O33, I18, J16
O12, I15
C83, C88, C93, J16, O12
I21, J24, O33
I25, O15, C93, J16, O12
; Human Development; Income Distribution; Migration O33: Technological Change: Choices and Consequences • Diffusion Processes
I25, O15, O33
O12, L25, L15, O14, D12