MIT: Stronger pandemic lockdowns better for economy

Arguments around whether to implement harsh lock-down measures to curb the coronavirus’ spread typically centre around the trade-off between protecting human life and the economy.

New research from MIT suggests that there is no “trade-off” and that stronger lock-down responses typically generate stronger economies:

The study, “Pandemics Depress the Economy, Public Health Interventions Do Not: Evidence from the 1918 Flu,” was posted to the Social Science Research Network as a working paper on March 26. In addition to Verner, the co-authors are Sergio Correia, an economist with the U.S. Federal Reserve, and Stephen Luck, an economist with the Federal Reserve Bank of New York…

[The study shows] taking care of public health first is precisely what generates a stronger economic rebound later.

The study, using data from the flu pandemic that swept the U.S. in 1918-1919, finds cities that acted more emphatically to limit social and civic interactions had more economic growth following the period of restrictions.

Indeed, cities that implemented social-distancing and other public health interventions just 10 days earlier than their counterparts saw a 5 percent relative increase in manufacturing employment after the pandemic ended, through 1923. Similarly, an extra 50 days of social distancing was worth a 6.5 percent increase in manufacturing employment, in a given city.

“We find no evidence that cities that acted more aggressively in public health terms performed worse in economic terms,” says Emil Verner, an assistant professor in the MIT Sloan School of Management and co-author of a new paper detailing the findings. “If anything, the cities that acted more aggressively performed better.”

With that in mind, he observes, the idea of a “trade-off” between public health and economic activity does not hold up to scrutiny; places that are harder hit by a pandemic are unlikely to rebuild their economic capacities as quickly, compared to areas that are more intact.

“It casts doubt on the idea there is a trade-off between addressing the impact of the virus, on the one hand, and economic activity, on the other hand, because the pandemic itself is so destructive for the economy,” Verner says…

To conduct the research, the three scholars examined mortality statistics from the U.S. Centers for Disease Control (CDC), historical economic data from the U.S. Census Bureau, and banking statistics compiled by finance economist Mark D. Flood, using the “Annual Reports of the Comptroller of Currency,” a government publication…

Scholars have known that the varying use of “nonpharmaceutical interventions,” or social-distancing measures, correlated to varying health outcomes across cities in 1918 and 1919. When that pandemic hit, U.S. cities that shut down schools earlier, such as St. Louis, fared better against the flu than places implementing shutdowns later, such as Philadelphia. The current study extends that framework to economic activity.

Quite a bit like today, social distancing measures back then included school and theater closures, bans on public gatherings, and restricted business activity.

“The nonpharmaceutical interventions that were implemented in 1918 interestingly resemble many of the policies that are being used today to reduce the spread of Covid-19,” Verner says.

Overall, the study indicates, the economic impact of the pandemic was severe. Using state-level data, the researchers find an 18 percent drop in manufacturing output through 1923, well after the last wave of the flu hit in 1919.

Looking at the effect across 43 cities, however, the researchers found significantly different economic outcomes, linked to different social distancing policies. The best-performing cities included Oakland, California; Omaha, Nebraska; Portland, Oregon; and Seattle, which all enforced over 120 days of social distancing in 1918. Cities that instituted fewer than 60 days of social distancing in 1918, and saw manufacturing struggle afterward, include Philadelphia; St. Paul, Minnesota; and Lowell, Massachusetts.

“What we find is that areas that were more severely affected in the 1918 flu pandemic see a sharp and persistent decline in a number of measures of economic activity, including manufacturing employment, manufacturing output, bank loans, and the stock of consumer durables,” Verner says…

The researchers found that in Albany, New York; Birmingham, Alabama; Boston; and Syracuse, New York — all of which also had fewer than 60 days of social distancing in 1918 — the banking sector struggled more than anywhere else in the country.

The underlying message from MIT is that governments should go hard and early to stop a pandemic’s spread – the opposite of the Morrison Government’s approach.

Unconventional Economist

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