J6, C93, D91, O15, J01
C21, C93, D1, D81, D90, I12, I21
C21; C93; D1; D81; D90; I12; I21
D12, G41, G51
C93 Field Experiments; F35 Foreign Aid; F22 International Migration; F51 International Conflicts; Q54 Climate
D12, D62, D83, H23, H31
D81; D12; C90
D12, D81, D84, J22
J16 D90 C93
D12, D4, D6, D61, D62, D9, H1, H2, H23, L5, N5, Q01, Q25, Q5, Q51