The American Economic Association's registry for randomized controlled trials
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138 Trials Found
JEL: C93, I21, J13
K42, I26, J13, J24
J13, J22, C83
C93, D90, I28, J13
J13 Early childhood stimulation; other codes: I20, I25, I30, I38
C93, D83, I12, J13.
C93, D83, O15, J13.
I00, J13
D1, D13, C9, J13