The Effectiveness of Digital Interventions on COVID-19 Attitudes and Beliefs
- https://arxiv.org/abs/2206.10214
- Susan Athey, Kristen Grabarz, Michael Luca, Nils Wernerfelt
We find on average these campaigns are effective at influencing self-reported beliefs, shifting opinions close to 1% at baseline with a cost per influenced person of about $3.41.