The American Economic Association's registry for randomized controlled trials
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941 Trials Found
C72, C91, D83
C91, D83, D90
C91, D81, D83, D91
C92 C78 I20
Q18, L66, D81, C93, D11
D81, D25, O12, O13, Q12, Q54
D03, D12, D91, L94, O13, Q41, C93, H42, H53
C90, D81