1. Rare events and long-run risks;Barro;Rev. Econ. Dyn.,2021
2. Macroeconomic crises since 1870;Barro;Brook. Pap. Econ. Act.,2008
3. Influenza, A Survey of the Last 50 Years in the Light of Modern Work On the Virus of Epidemic Influenza;Burnet,1942
4. Chetty, R., Friedman J., Hendren N., Stepner M., and the OI Team (2021). Economic Tracker, available at www.tracktherecovery.org.
5. Statistics of influenza morbidity: with special reference to certain factors in case incidence and case fatality;Frost;Public Health Rep.,1920