The American Economic Association's registry for randomized controlled trials
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647 Trials Found
C78, C91, D63, Q28
C21, C91, M50
C91, C25, D73
C91, C92, D64, Q56
A16, D63, D83
D91, C91, D83
C72, C91, D8, D9
D83, D63, D31
C72, C91, D82, L15
D31, D63, D90, and D92