The American Economic Association's registry for randomized controlled trials
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678 Trials Found
H53 (Government Expenditures and Welfare Programs) D91 (Role and Effects of Psychological
C99, D11, D81, D91
C99; D69; D91; J15
C90, D64, D91
I25; F66; D91
D12, D83, D91, L86
C91, D83, D91
C93, D14, D91, O12
C93, D91, G50, I30
D64, L31