D01, D04, D91, H23, Q58
D01, D91, H23
G52, Q14, Q12, O12
O12, O13, Q12, D22, M13, C81, C83, C93, D50
I3, J1, O12
C90, D81, D91, G11, I31
O12, O14, M31, L26
O12; O16; G52; H53
I21, I24, J15, C93, D83, D91
(Technological Change: Choices and Consequences; Diffusion Processes), D91 (Micro-Based Behavioral