The American Economic Association's registry for randomized controlled trials
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20 Trials Found
O12, O18, M53, J62
O12, O17, O18, D24, D61
O18, R41, D1, I3, H2
O18, K49
H42, L95, D91, O18
O12,O18,M53,J62
H42 J16 K11 O18 Q15
I18, I38, O18
C93; E42; G23; O12; O18
D83, L86, O18, O31