D12, D83, P16, Q11, Q13, Q18, Z18
D72, D83, L82
D83, D91, J16, J29, O53, Z13
C93, J23, J24, M51, O33
C93, D83, D90
I21 — Analysis of Education O33 — Technological Change: Choices and Consequences; Diffusion
Processes D83 — Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
C91, D03, O33
I12; I18; D83; C93; D85
C93, D83, D91, I23, I31, L82, L86, O33
J31, J63, J64, C93, D83, J68