The American Economic Association's registry for randomized controlled trials
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976 Trials Found
D63, D72, D91, H23, K32
D83, D90, C91
C91, D91, J16, Z11
D9, D83, D64, C91
C9; D72; D83; D91; H23 ; Q52
H23, O23
A13, C90, J20, J24
C12, C72, C91, C92, D44, D47, D82
D12, C91
C91,C92,D03