The course of the epidemic: can be found here on github.
Issues with the Santa Clara data
A critical review here. False positives are a big issue for this type of test.
Misinformation During a Pandemic
On this important topic, Nikolaj Broberg points us to a paper that examines the news coverage of the Corona pandemic in the two US cable news shows Hannity and Tucker Carlson Tonight (Fox).
Data on restrictions in worldwide
Oxford’s Blavatnik School of Government is tracking government responses to Covid-19 on a by country basis. The data is downloadable in several formats and there is a working paper describing how it is collected and what it means.
More from the NBER
The Subways Seeded the Massive Coronavirus Epidemic in New York City
Jeffrey E. Harris #27021
Economic Policy Incentives to Preserve Lives and Livelihoods
Roberto Chang and Andrés Velasco #27020
Lock-downs, Loneliness and Life Satisfaction
Daniel S. Hamermesh #27018
Covid-19: Testing Inequality in New York City
Stephanie Schmitt-Grohé, Ken Teoh, and Martín Uribe #27019
Did California’s Shelter-in-Place Order Work? Early Coronavirus-Related Public Health Benefits
Andrew I. Friedson, Drew McNichols, Joseph J. Sabia, and Dhaval Dave #26992
Risk Perception Through the Lens of Politics in the Time of the COVID-19 Pandemic
John M. Barrios and Yael Hochberg #27008
Estimating the COVID-19 Infection Rate: Anatomy of an Inference Problem
Charles F. Manski and Francesca Molinari #27023
Covid-19 Infection Externalities: Trading Off Lives vs. Livelihoods
Zachary A. Bethune and Anton Korinek #27009
Labor Markets During the COVID-19 Crisis: A Preliminary View
Olivier Coibion, Yuriy Gorodnichenko, and Michael Weber #27017
Policy Implications of Models of the Spread of Coronavirus: Perspectives and Opportunities for Economists
Christopher Avery, William Bossert, Adam Clark, Glenn Ellison, and Sara Fisher Ellison #27007
Random (?) testing in Santa Clara County
Bendavid et al report the results of a “representative sample” recruited from Facebook of anti-body testing.
Impact of the lockdown on economic activity in Spain
Carvalho et al in “Tracking the COVID-19 crisis with high resolution transaction data” find a nearly 50% decline in activity after the lockdown and about a 50% increase in the share of online sales. In the days before the lockdown there was about a 20% increase in sales – presumably due to stockpiling.
More interesting back of the envelope calculations from Kevin Drum
“Stay Nearby or Get Checked”
Looking for a viable exit strategy Jan-Tino Brethouwer, Arnout van de Rijt et al. simulate a scenario in which the lockdown is partially lifted while long-range transmissions of the contagion are strictly prevented. Such strategy, their results show, can limit significantly the spread of a second wave. First public resonance here. Bloomberg reported on these findings on 24 April.
Grocery store risk
Some interesting back of the envelope calculations by Kevin Drum.