The American Economic Association's registry for randomized controlled trials
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921 Trials Found
C93, D83
C93, D73, D74
O12, O13, Q12, D22, M13, C81, C83, C93, D50
C93, O15
C93, J15, Z29
I23, J71, I20
C12; C8; C9; C93; H3; I12; R4
I23, I20, J16, C93
C93, D21, J24, M5
J13, O15, C93