Do Lockdowns Work? Well of course they do! Maybe not.
I’m a little embarrassed but it seems from the heavy REAL Science it makes things worse
At least that is what this article ,published in The Wall street Journal says
New data suggest that social distancing and reopening haven’t determined the spread.
TrendMacro, my analytics firm, tallied the cumulative number of reported cases of Covid-19 in each state and the District of Columbia as a percentage of population, based on data from state and local health departments aggregated by the Covid Tracking Project. We then compared that with the timing and intensity of the lockdown in each jurisdiction. That is measured not by the mandates put in place by government officials, but rather by observing what people in each jurisdiction actually did, along with their baseline behavior before the lockdowns. This is captured in highly detailed anonymized cellphone tracking data provided by Google and others and tabulated by the University of Maryland’s Transportation Institute into a “Social Distancing Index.”
Measuring from the start of the year to each state’s point of maximum lockdown—which range from April 5 to April 18—it turns out that lockdowns correlated with a greater spread of the virus. States with longer, stricter lockdowns also had larger Covid outbreaks. The five places with the harshest lockdowns—the District of Columbia, New York, Michigan, New Jersey and Massachusetts—had the heaviest caseloads.
The lesson is not that lockdowns made the spread of Covid-19 worse—although the raw evidence might suggest that—but that lockdowns probably didn’t help, and opening up didn’t hurt. This defies common sense. In theory, the spread of an infectious disease ought to be controllable by quarantine. Evidently not in practice, though we are aware of no researcher who understands why not.
We’re not the only researchers to have discovered this statistical relationship. We first published a version of these findings in April, around the same time similar findings appeared in these pages. In July, a publication of the Lancet published research that found similar results looking across countries rather than U.S. states. “A longer time prior to implementation of any lockdown was associated with a lower number of detected cases,” the study concludes. Those findings have now been enhanced by sophisticated measures of actual social distancing, and data from the reopening phase.
There are experimental controls that all this research lacks. There are no observable instances in which there were either total lockdowns or no lockdowns at all. But there’s no escaping the evidence that, at minimum, heavy lockdowns were no more effective than light ones, and that opening up a lot was no more harmful than opening up a little. So where’s the science that would justify the heavy lockdowns many public-health officials are still demanding?
With the evidence we now possess, even the most risk-averse and single-minded public-health officials should hesitate before demanding the next lockdown and causing the next economic recession.
Mr. Luskin is chief investment officer of TrendMacro.