Fig. 4.

Event Study Estimates for the Impact of Spring Break Travel on COVID-19 Cases and Mortality. Notes: Each marker plots a coefficient estimate of ${\gamma }_j$ from the event study specification defined by Eq. (1). Vertical bars represent the 95% confidence intervals derived using standard errors clustered at the county level. Each outcome observation is a county’s weekly exponential growth rate. Outcome data come from the New York Times.