Hi, thanks for the comment! Yes, most of the studies are longitudinal cohort studies. I think this is one of the best examples of a well-designed interventional study: https://www.aeaweb.org/articles?id=10.1257/app.20160056
Hi, thanks for the comment! Yes, most of the studies are longitudinal cohort studies. I think this is one of the best examples of a well-designed interventional study: https://www.aeaweb.org/articles?id=10.1257/app.20160056