The American Economic Association's registry for randomized controlled trials
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220 Trials Found
J7, D91, J2, C92
Q34, D74, Z13, D71
C72, C92, D83, D91
J24, O33, C91, C92
J15, J16, C92
C91; C92; C71; D71; H41
C92,D91
C91, C92, D83, D91, M54
C92; D31; D63.
C92, D82, D83, M52, C72