J16, J24, O33
O12, O13, Q12, Q16
O31; O32; O33; O34; O38; Q55; D22
O12, O18, 055, J61, D72
; Human Development; Income Distribution; Migration O33: Technological Change: Choices and Consequences • Diffusion Processes
C83 C93 I31 Q15 Q16 Q54 O12
L2, M50, J24, L66
C93, D72, O33, P16
I12, I15, O12, J13
O12, O20, I32, J16