I24, I23, J24, O15
I20 General, I32 Measurement and Analysis of Poverty, I21 Analysis of Education
L26, O31, Q55, C93
Q53, C93
G53, J24, I21
M5, M2, J24
I25, J22
I10, I18, C93, I20
D22 Firm Behavior: Empirical Analysis, Q4 Energy, Q5 Environmental Economics
J16 I38