Bailey, Michael; Johnston, Drew; Koenen, Martin; … - 2021
coronavirus. We use de-identified data from Facebook to document that individuals with friends in areas with worse COVID-19 … outbreaks reduce their mobility more than otherwise similar individuals with friends in less affected areas. The effects are … quantitatively large and long-lasting: a one standard deviation increase in friend-exposure to COVID-19 cases in March 2020 results …