D91, I10
D85, D91, I15, J16
D22 Firm Behavior: Empirical Analysis, Q4 Energy, Q5 Environmental Economics
G50, G51, D14, D91, I22, H3, H81, E21
C91, D83, D91, L82
M30, D18 , L81, D91, C91
C91, D9, D91, D83
C91, D64, D8, D91
I25 Education and Economic Development; I15 Health and Economic Development
I23, D91, C93