The American Economic Association's registry for randomized controlled trials
First published corresponds to when the trial was first made public on the Registry after being reviewed.
Last updated is the most recent time when changes to the trial's registration were published.
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MD5: 021c43b9878bfd2e9fc64964759df64a
SHA1: d5cd49aeaec57d3cbcab9a0d8f631ccb3cd0cb40
Uploaded At: December 20, 2013