L11, L13, L15, L86, D12, D22
J12, O12, I15
G52, Q14, Q12, O12
J16, J24, O33
O12, O13, Q12, Q16
O31; O32; O33; O34; O38; Q55; D22
O12, O18, 055, J61, D72
D22, H32, L23, O13, O14
; Human Development; Income Distribution; Migration O33: Technological Change: Choices and Consequences • Diffusion Processes
C83 C93 I31 Q15 Q16 Q54 O12