The American Economic Association's registry for randomized controlled trials
Initial registration date is when the trial was
It corresponds to when the registration was submitted to the Registry
to be reviewed for publication.
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.
August 12, 2017
June 24, 2021
There is information in this trial unavailable to the public. Use the button below to