BALTIMORE, MD, May 13, 2025 – As communities across the United States continue to confront the devastating toll of mass shootings, new research reveals a staggering economic dimension to these tragedies. A study published in the INFORMS journal Marketing Science finds that mass shootings cause an estimated $27 billion in annual lost revenue for U.S. retailers driven by sharp declines in foot traffic, reduced transaction volume and long-term store closures.
BALTIMORE, MD, May 13, 2025 – Researchers who took a close look at loosened concealed carry laws between 2010 and 2017 have found that “Shall Issue” regulations, which remove local authority discretion on the issuance of concealed carry gun permits, contribute to a significant increase in handgun purchases. At the same time, the researchers found that in states that adopted “Permitless Carry” policies, there was no noticeable change in gun purchases.
The time has come: REAL ID will finally be implemented in less than one week, about 20 years after it was initially proposed.
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To help hospitals facing unprecedented demand for intensive-care beds to treat COVID-19 patients, we’ve developed a free simulation model to help assess how many ICU beds and surge capacity will be needed to meet demand as case numbers rise.
A New York hospital is putting two patients at a time on ventilators intended for one, a stopgap move that reflects the desperate shortage of lifesaving breathing devices during the coronavirus pandemic.
Six student teams from around the world are selected as finalists in the fourth annual INFORMS O.R. & Analytics Student Team Competition. The competition highlights impressive young talent and provides operations research (O.R.) and analytics students with the opportunity to solve the kind of real-world workplace challenges they will undoubtedly face during their careers.
Americans waste an obscene amount of food. Between 30 and 40 percent of food produced for human consumption never gets eaten, ending up in landfills where it breaks down and emits methane, a greenhouse gas whose pound-for-pound impact is 25 times greater than carbon dioxide over a 100-year period.
At some time in your life, you’ve probably been guilty of panic buying. During the coronavirus pandemic, it’s become one of the signature moves of many panicked Americans. Shelves of toilet paper and paper towels have been wiped-clean from supermarkets, disinfecting wipes disappearing for the first time ever, as is hand sanitizer.
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