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.
An audio journey of how data and analytics save lives, save money and solve problems.
Ashley Smith
Public Affairs Coordinator
INFORMS
Catonsville, MD
[email protected]
443-757-3578
Explore our resources for multiple topics including:
The coronavirus cannot keep us stuck in our homes forever. Someday our kids will go back to school, we will return to work, and families and friends will gather once again for birthdays, holidays, weddings and funerals.
In the US, President Trump has said that testing for novel coronavirus infection will be limited to people who believe they may be infected. But if we only test people who believe they may be infected, we cannot understand how deep the virus has reached into the population. The only way this could is if those who believe they may be infected are representative of the population with respect to novel coronavirus infection. Does anyone believe this is so?
Maryland saw its largest daily spike in new coronavirus cases Wednesday with more than 1,000 new confirmed cases announced, as the state’s hospitals brace for a rush of patients.
If you didn’t know what a supply chain was a month ago, you do now. We are feeling them palpably, through strikes of essential workers, surgical mask shortages, and bleak shelves in the paper-products aisle. Anna Nagurney, John F. Smith Memorial Professor of Operations Management at the UMass Amherst Isenberg School of Management, has spent her career studying supply chains and the impacts of disruptions.
While the concept of crowdfunding is still in its early phases of development, a group of marketing researchers have conducted a study that reveals the most powerful drivers behind effective crowdfunding campaigns. According to the researchers, there are three primary mechanisms that serve as the major drivers of crowdfunding campaigns that yield results.
OR/MS Today is the INFORMS member magazine that shares the latest research and best practices in operations research, analytics and the management sciences.
Access OR/MS Today Magazine
Analytics magazine showcases articles and research reports based on big data, AI, machine learning, data analytics and other new-age technologies.
Access Analytics Magazine