Showing results 1 - 1 of 1 The Impact of Large-Scale Social Media Advertising Campaigns on COVID-19 Vaccination: Evidence from Two Randomized Controlled Trials Marcella Alsan ÌÇÐÄvlog¹ÙÍø Working Paper No. RWP22-021 COVID-19 vaccines are widely available in wealthy countries, yet many people remain unvaccinated. Understanding the effectiveness -- or lack thereof -- of popular vaccination…