and the Enforcement of Law), O33 (Technological Change: Choices and Consequences; Diffusion Processes), D12 (Consumer Economics: Household Analysis)
G4, G53, C9, I21
C93, I21, D91
I21, J24, D83
I21, I28, J13
(Consumer Economics: Empirical Analysis), Q42 (Alternative Energy Sources)
C93, I21, J31
I21, J24, O33, C93
D91, I21, I24, J15, J24, O15
J24, I23, D84, J31, I21, J62