The American Economic Association's registry for randomized controlled trials
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931 Trials Found
D91,D64
C92, C93
C91, C93, J12, O12
C83, C90, D64, D90
C93, J12, O12
C93, D91, M52
C93, D91
C93; D72; D91; Z20
A20 C93 D83 I21 I23
C93, D01, D02, D63, G50, J12, J13, J16, J22, Q12