O12, O13, Q12, Q16
O31; O32; O33; O34; O38; Q55; D22
D22, H32, L23, O13, O14
; Human Development; Income Distribution; Migration O33: Technological Change: Choices and Consequences • Diffusion Processes
O13, R23, J01, L86
Q50, Q56, Q58, Q53, O13, O10
Q56, O13, O15, I15, I25.
Q15, Q16, Q25, O13, C93
C93, D72, O33, P16
Q15; Q18; Q25; Q28; Q53