Experimental Evidence on the Effectiveness of Non-Experts for Improving Vaccine Demand

We thank Minjeong Joyce Kim, Nikhil Shankar and Lukas Leister for excellent research assistance. We also thank Mackenzie Alston, Luca Braghieri, Amitabh Chandra, Stefano DellaVigna, Esther Duflo, Amy Finkelstein, Matthew Gentzkow, Mirelle Jacobson, Damon Jones, Heather Royer, Kosali Simon, Marianne Wanamaker, Crystal Yang, JPAL North America Board and Reviewers as well as participants in seminars at ASSA, Brown University, Harvard/MIT/BU Health Economics, Stanford, UCSB, UCSD, and Washington University in St. Louis for comments. The study was approved by IRB at Harvard University (IRB19-1424) and registered at ClinicalTrials.gov (NCT04160975), AEA RCT registry (AEARCTR-0004796), and OSF (DOI 10.17605/OSF.IO/XJ5WP). Funding was provided by J-PAL North America and Harvard Kennedy School. Research reported in this publication was also supported by the National Institute on Aging under award number P30AG064190. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or the National Bureau of Economic Research. The authors have no conflicts to disclose. Previously circulated under the title: "Persuasion in Medicine: Messaging to Increase Vaccine Demand".

• March 18, 2021
• June 9, 2021