The American Economic Association's registry for randomized controlled trials
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624 Trials Found
C91, D63, O33
C80, C90, D30, D63
I21, I28, D83, C91, C93, O33
D91, J16, C93, D63, O12, J22
C91, D83, J24, J54
C72, C78, C91, C92
C72, C91, D8, D9
C91, J15
C91, D90, D91
C33 C91 D91