The American Economic Association's registry for randomized controlled trials
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974 Trials Found
C93, I26
D91, O16
I12, C93
C21, C93, M50
I21, I23, C93, D90, D91
J15, C92, C93
C93 I21 I23 D91
D14, D18, G51, O16
C93, J15, J16, J23, J71
C93, D14, H52, I22,