The American Economic Association's registry for randomized controlled trials
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899 Trials Found
C83, C91, J16, J71
J13, J16 , C83, Z13
J16, D90, O12
I14, I18, I28, I24, I31, J13, I32, J13, J24, J32, O15
C91, D91, J01, J16, J71
A22, C93, I20, I23, J08, J16
I31, O12, Z13, J16
D91, J24, M54
L26, J16, O30
D9; D2; J16; C91