The American Economic Association's registry for randomized controlled trials
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28 Trials Found
J22, O14, J16, L86
O14, O16, O17, O33, D83, G20, L14, L15, L81
M50, O14
D22, O14, J21
L2, M2, O14, O32, O33
L2, M2, O14, O32, O33.
D82, G28, G41, O14
O14, M31, L26