The American Economic Association's registry for randomized controlled trials
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909 Trials Found
D31, D63, D90, and D92
C91, D81, D91
C78, C91, D63
C91 D03 J16
C93 ; C91 ; D91 ; D12
D90, D91, J01, J33, M50, M52
C91; D83; D84; D91
C91, D31, D63
D90
C91, D01, D83