The American Economic Association's registry for randomized controlled trials
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593 Trials Found
C91, D8
C91, D01, D83
C11, C91, D83, D84
C91, D70, D91
C90 C91 D63 D90 H23
L41, C91, D22
D78,H41,I18
J16, J78, C91
C91, D83, D91
J16, C91, D90, J24