G53, J24, I21
M5, M2, J24
I25, J22
I10, I18, C93, I20
D22 Firm Behavior: Empirical Analysis, Q4 Energy, Q5 Environmental Economics
J16 I38
J16, J24, I24
C93, D72
J24
I25 Education and Economic Development; I15 Health and Economic Development