The American Economic Association's registry for randomized controlled trials
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983 Trials Found
D83, Q41, Q48, Q55
J24, D83, D91, I25, I26
D64; L30
C72, C73, C92, D83
O13, Q12, Q16, C93, D83.
C72, C78, C91, C92
C90, D64, L31
C92; D31; D63
C90 C91 D63 D90 H23
D81, D83, D84, C93, I26