The American Economic Association's registry for randomized controlled trials
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684 Trials Found
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
C91; D83; D84; D91
C91, D31, D63