The American Economic Association's registry for randomized controlled trials
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976 Trials Found
C90, D72, D91
C83, D31, D63
C91, D63, D91, H23
D03, H23, H24, C93, D31, D72
C91, D82, D83, D91, J71, O33
D83, H23, H30, Q58
C91, D8, D91
K37, O15, D63, C9
I24 , D90 , D91
D63, C91