The American Economic Association's registry for randomized controlled trials
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648 Trials Found
J13, J16, D83
C83, C91, J16, J71
J13, J16 , C83, Z13
C92, D82, D83
C91, D91, J01, J16, J71
A22, C93, I20, I23, J08, J16
C72; C92
I31, O12, Z13, J16
D83, D82, C92
L26, J16, O30