i21, i23, c93, d83, o33
M41 – Accounting O33 – Technological Change: Choices and Consequences; Diffusion Processes L26
D91, O33, Z13, C91
R23, O16, I32, O33
J64, O15, O33, D83, J68, C93, D91, J24, O12
D81, C90, O33
J24, J31, O33, D82
C91, D63, O33
I31, D91, O33, J23, D81, C83
C91 — Laboratory, Individual Behavior D91 — Intertemporal Household Choice; Life Cycle Models