The New York Times – “A group of Stanford University economists estimates that there have been at least 30,000 coronavirus infections and 700 deaths as a result of 18 campaign rallies President Trump held between June and September…”
Bernheim, B. Douglas and buchmann, Nina and Freitas-Groff, Zach and Otero, Sebastián, The Effects of Large Group Meetings on the Spread of COVID-19: The Case of Trump Rallies (October 30, 2020). “We investigate the effects of large group meetings on the spread of COVID-19 by studying the impact of eighteen Trump campaign rallies. To capture the effects of subsequent contagion within the pertinent communities, our analysis encompasses up to ten post-rally weeks for each event. Our method is based on a collection of regression models, one for each event, that capture the relationships between post-event outcomes and pre-event characteristics, including demographics and the trajectory of COVID-19 cases, in similar counties. We explore a total of 24 procedures for identifying sets of matched counties. For the vast majority of these variants, our estimate of the average treatment effect across the eighteen events implies that they increased subsequent confirmed cases of COVID-19 by more than 250 per 100,000 residents.Extrapolating this figure to the entire sample, we conclude that these eighteen rallies ultimately resulted in more than 30,000 incremental confirmed cases of COVID-19. Applying county-specific post-event death rates, we conclude that the rallies likely led to more than 700 deaths(not necessarily among attendees).”
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