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.
With sweeping new tariffs on Chinese-made products set to take effect this summer, Americans are being urged to prepare for price hikes on everyday goods. President Donald Trump's reinstated trade policies are expected to affect a wide swath of consumer imports, including electronics, furniture, appliances, and baby gear. Retail experts are advising shoppers to act before the tariffs hit and prices rise.
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Benefits of Super Bowl ads linger in the months following the annual game, with sales boosts during other major sporting events like NCAA March Madness, NBA playoffs and MLB games, according to a study in the INFORMS journal Marketing Science.
A study recently published in the INFORMS journal Management Science finds lower rates of within-industry entrepreneurship in states with strong noncompete enforcement. Using data on about 5.5 million new firms in 30 states, the researchers found that strongly bound workers were significantly less likely to build new companies within the same industry.
Bros don't know. In a new study in the INFORMS journal Management Science, individuals and groups of three were given general-knowledge and forecasting questions. All-male groups had worse discussion dynamics than groups with at least one woman. As a result, their judgments were more poorly calibrated than the other groups’ — and even compared to individual men or women.
We’ve all heard the story of Vincent van Gogh cutting his ear off and of Jackson Pollock’s alcoholism and depression. The struggles facing the creative “genius” are so ingrained in our culture that it has its own moniker: “tortured artists.” Some of the greatest creators of all time are synonymous with depression. But a new study in the INFORMS journal Management Science finds that work created by artists when they are unhappy is valued less than their other works.
In the next three weeks, SEC fans will ponder, debate, agonize and pray over which school their most-coveted recruits will choose on National Signing Day. But a mathematical model has already made the call for all of them – sort of. The model, designed by Iowa Ph.D. candidate Kristina Bigsby, relies on social media posts and “basic biographical information” – presumably including publicly available data like hometown and school. Her work was published in the journal Decision Analysis, from INFORMS.
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