The American Economic Association's registry for randomized controlled trials
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598 Trials Found
A16, D63, D83
D91, C91, D83
C72, C91, D8, D9
D83, D63, D31
C72, C91, D82, L15
D31, D63, D90, and D92
C91, D81, D91
C78, C91, D63
C91 D03 J16
C93 ; C91 ; D91 ; D12