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The data speak: Stronger pandemic response yields better economic recovery

Study of 1918 flu pandemic shows U.S. cities that responded more aggressively in health terms also had better economic rebounds.
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A new study co-authored by Emil Verner, an assistant professor at The MIT Sloan School of Management, shows that in the 1918 flu pandemic, cities that had more aggressive interventions including social distancing also experienced stronger economic recoveries afterward.
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Caption: A new study co-authored by Emil Verner, an assistant professor at The MIT Sloan School of Management, shows that in the 1918 flu pandemic, cities that had more aggressive interventions including social distancing also experienced stronger economic recoveries afterward.
Credits: Image: Christine Daniloff, MIT; stock image buildings

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A new study co-authored by Emil Verner, an assistant professor at The MIT Sloan School of Management, shows that in the 1918 flu pandemic, cities that had more aggressive interventions including social distancing also experienced stronger economic recoveries afterward.
Caption:
A new study co-authored by Emil Verner, an assistant professor at The MIT Sloan School of Management, shows that in the 1918 flu pandemic, cities that had more aggressive interventions including social distancing also experienced stronger economic recoveries afterward.
Credits:
Image: Christine Daniloff, MIT; stock image buildings

The research described in this article has been published as a working paper but has not yet been peer-reviewed by experts in the field.

With much of the U.S. in shutdown mode to limit the spread of the Covid-19 disease, a debate has sprung up about when the country might “reopen” commerce, to limit economic fallout from the pandemic. But as a new study co-authored by an MIT economist 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.

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.

Evaluating economic consequences

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.

As Verner notes, the researchers were motivated to investigate the 1918-1919 flu pandemic to see what lessons from it might be applicable to the current crisis.

“The genesis of the study is that we’re interested in what the expected economic impacts of today’s coronavirus are going to be, and what is the right way to think about the economic consequences of the public health and social distancing interventions we’re seeing all around the world,” Verner says.

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 above average duration and intensity of social distancing in 1918. Cities that instituted significantly fewer than 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.

Banking issues

As far as banking goes, the study included banking write-downs as an indicator of economic health, because “banks were recognizing losses from loans that households and businesses were defaulting on, due to the economic disruption caused by the pandemic,” Verner says.

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

As the authors note in the paper, the economic struggles that followed the 1918-1919 flu pandemic reduced the ability of firms to manufacture goods — but the reduction in employment meant that people had less purchasing power as well.

“The evidence that we have in our paper … suggests that the pandemic creates both a supply-side problem and a demand-side problem,” Verner notes.

As Verner readily acknowledges, the composition of the U.S. economy has evolved since 1918-1919, with relatively less manufacturing today and relatively more activity in services. The 1918-1919 pandemic was also especially deadly for prime working-age adults, making its economic impact particularly severe. Still, the economists think the dynamics of the previous pandemic are readily applicable to our ongoing crisis.

“The structure of the economy is of course different,” Verner notes. However, he adds, “While one shouldn’t extrapolate too directly from history, we can learn some of the lessons that may be relevant to us today.” First among those lessons, he emphasizes: “Pandemic economics are different than normal economics.”

Press Mentions

Boston Globe

Writing for The Boston Globe, Prof. Emil Verner underscores how public health measures to slow the spread of Covid-19 can aid economic recovery. “This shouldn’t be seen as a choice between saving lives and saving the economy,” writes Verner. “It’s clear that well-calibrated public health interventions are the most beneficial way to protect our health and the health of our economy.”

The Wall Street Journal

Wall Street Journal reporter Mike Bird writes that a new paper by researchers from MIT and the Federal Reserve found that “during the 1918 flu pandemic in the U.S., cities with stricter lockdowns actually seemed to emerge with less-severe economic consequences.”

New York Times

An analysis of data from the 1918 flu pandemic by MIT and Federal Reserve researchers finds cities that committed earlier and longer to social distancing measures fared better economically, reports Emily Badger and Quoctrung Bui for The New York Times. Stricter interventions “actually make it safer for economic activity to resume, and they mitigate the negative impact of the pandemic itself on mortality,” explains Prof. Emil Verner.

Boston Globe

Researchers from MIT and the Federal Reserve have found that public health measures like social distancing can help the economy rebound after a pandemic, reports Travis Anderson for The Boston Globe. The researchers found “cities that implemented social distancing and other measures 10 days earlier than other municipalities saw a 5 percent 'relative increase' in manufacturing employment when the pandemic ended, through 1923.”

WBUR

WBUR reporter Zeninjor Enwemeka writes that a new study co-authored by MIT researchers finds aggressive measures aimed at curbing the spread of Covid-19 could also aid economic recovery. "Our findings suggest that reopening the local economy and lifting these restrictions too rapidly may actually be bad for the economy down the road,” explains Prof. Emil Verner.

Economist

Researchers from MIT and the Federal Reserve analyzed data from the 1918 flu pandemic and found that “the notion that reducing deaths from a pandemic necessarily hurts the economy is false,” reports The Economist.  

Reuters

Reuters reporters Ann Saphir and Jeff Mason write that a new study by Prof. Emil Verner finds that during the 1918 flu epidemic cities that responded aggressively had fewer deaths and emerged from the pandemic with stronger economic growth. “One can do those types of quite gruesome calculations” says Verner. But evidence suggests “that in some sense, that’s a false tradeoff.”

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