The American Economic Association's registry for randomized controlled trials
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894 Trials Found
D83, C91
I12, D81, D83, C92
C83, C93, D83, E52, E58
D31, D83, H24
C93, D91, I20, J16, J24
C81, C10, D91
D91, J16
C55,C92, D83
D83, D84, I12
D63; D72; D91