C91, D81, D83
D72, D83, D91, E71
; Human Development; Income Distribution; Migration O33: Technological Change: Choices and Consequences • Diffusion Processes
C93, D72, O33, P16
D01, D04, D91, H23, Q58
D01, D04, D91
D72, D83, C93
O12, D83, D91, I15
J24, L86, O31, O32, O33, D81, D83, M13
I11, C91, J24, D83