The variability in death trends across regions has fallen sharply since the beginning of the epidemic and remains low. 
Once that happens, deaths per day either begin to fall or the trend remains flat. In other words, no matter the country or state and its policies, deaths per day stop increasing within 20-30 days of passing a threshold of 25 deaths. Once a region reaches 25 total COVID deaths, within a month the growth rate in deaths per day falls to approximately zero. states and 23 countries.īased on their analysis, the authors present four “Stylized Facts” about COVID-19, which are: states with more than 1,000 COVID deaths as of late July. 
A new National Bureau of Economic Research (NBER) working paper by Andrew Atkeson, Karen Kopecky, and Tao Zha focused on countries and U.S.
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