The Impact of Large-Scale Social Media Advertising Campaigns on COVID-19 Vaccination: Evidence from Two Randomized Controlled Trials

Lisa Ho, Emily Breza, Abhijit Banerjee, Arun G. Chandrasekhar, Fatima C. Stanford, Renato Fior, Paul Goldsmith-Pinkham, Kelly Holland, Emily Hoppe, Louis- Maël Jean, Lucy Ogbu-Nwobodo, Benjamin A. Olken, Carlos Torres, Pierre-Luc Vautrey, Erica Warner, Esther Duflo and Marcella Alsan ()

AEA Papers and Proceedings, 2023, vol. 113, 653-58

Abstract: COVID-19 vaccines are widely available in wealthy countries, yet many remain unvaccinated. We report on two studies (United States and France) with millions of Facebook users that tested two strategies central to vaccination outreach: health professionals addressing common concerns and motivating "ambassadors" to encourage vaccination in their social networks. We can reject very small effects of any intervention on new first doses (0.16 pp, United States; 0.021 pp, France), with similar results for second doses and boosters (United States). During the Omicron wave, messaging aimed at the unvaccinated or those tasked with encouraging others did not change vaccination decisions.

JEL-codes: H51 I12 I18 L81 M37 (search for similar items in EconPapers)
Date: 2023
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Working Paper: The Impact of Large-Scale Social Media Advertising Campaigns on COVID-19 Vaccination: Evidence from Two Randomized Controlled Trials (2022)
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DOI: 10.1257/pandp.20231112

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