Data and Code for: The impact of large-scale social media advertising campaigns on COVID-19 vaccination: Evidence from two randomized controlled trials

Principal Investigator(s):  View help for Principal Investigator(s) Lisa Ho, MIT; Emily Breza, Harvard; Abhijit Banerjee, MIT; Arun G. Chandrasekhar, Stanford; Fatima C. Stanford, Massachusetts General Hospital; Renato Fior; Paul Goldsmith-Pinkham, Yale; Kelly Holland, Lynn Community Health Center; Emily Hoppe, Johns Hopkins University; Louis-Maël Jean, Abdul Latif Jameel Poverty Action Lab ; Lucy Ogbu-Nwobodo, Massachusetts General Hospital; Benjamin A. Olken, MIT; Carlos Torres, Massachusetts General Hospital; Pierre-Luc Vautrey, MIT; Erica Warner, Massachusetts General Hospital; Esther Duflo, MIT; Marcella Alsan, Harvard Kennedy School of Government

Version:  View help for Version V1

Name File Type Size Last Modified
  France 12/21/2022 04:50:AM
  US 01/23/2023 05:51:AM
LICENSE.rtf application/rtf 25.8 KB 12/23/2022 05:28:AM
README.rtf application/rtf 184.7 KB 01/23/2023 01:24:AM

Project Citation: 

Ho, Lisa, Breza, Emily, Banerjee, Abhijit, Chandrasekhar, Arun G., Stanford, Fatima C., Fior, Renato, … Alsan, Marcella. Data and Code for: The impact of large-scale social media advertising campaigns on  COVID-19 vaccination: Evidence from two randomized controlled trials. Nashville, TN: American Economic Association [publisher], 2023. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2023-05-05. https://doi.org/10.3886/E183610V1

Project Description

Summary:  View help for Summary COVID-19 vaccines are widely available in wealthy countries, yet many remain unvaccinated. We report on two studies (U.S. and France) with millions of Facebook users that tested strategies central to vaccination outreach: (1) health professionals addressing common concerns and (2) motivating “ambassadors” to encourage vaccination in their social networks. We can reject very small effects of any intervention on new first doses (0.16pp - U.S., 0.021pp - France), with similar results for second doses and boosters (U.S.). During the Omicron wave, messaging aimed at the unvaccinated or those tasked with encouraging others did not change vaccination decisions.
Funding Sources:  View help for Funding Sources National Institute of Health (P30AG064190-03 Sub: Project-001: 349273); Assistance Publique/Hôpitaux de Paris (APHP) (Video production); Facebook (Ran ads for free; Hired a marketing company)

Scope of Project

Subject Terms:  View help for Subject Terms COVID-19 Vaccination; Messaging Campaign; Clustered RCT; United States; France; Facebook
JEL Classification:  View help for JEL Classification
      C93 Field Experiments
      D83 Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
      I12 Health Behavior
      L86 Information and Internet Services; Computer Software
      O33 Technological Change: Choices and Consequences; Diffusion Processes
Geographic Coverage:  View help for Geographic Coverage United States, France
Time Period(s):  View help for Time Period(s) 12/22/2021 – 3/17/2022


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V1 [2023-05-05]

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