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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CATONSVILLE, MD, November 2, 2016 - A forthcoming study in the INFORMS journal Marketing Science, based on the psychology of sympathy, shows that small changes in the wording of a fundraising letter can increase donations by over 300 percent.
After dedicating a significant number of years and money to earning a university degree, what motivates people to voluntarily work in jobs outside their field? In a study selected for publication in the INFORMS journal Organization Science, study author Briana Sell Stenard, INFORMS member and assistant professor of management and entrepreneurship at the Stetson School of Business and Economics at Mercer University, explored the factors that contribute to this including loss of interest, better pay and working conditions, higher positions, and increased flexibility.
In an upcoming Management Science study, INFORMS member and professor at the Johns Hopkins Carey Business School Ruxian Wang has developed a method to measure the appeal or "cool factor" of commercial products.
A forthcoming study in the INFORMS journal Marketing Science by INFORMS member and professor at Johns Hopkins Carey Business School, Jian Ni, explores how guiding patients to a more appropriate level of healthcare can reduce healthcare expenditures.
Planning a pub crawl and need to know the shortest distance between each of your stops? INFORMS member Professor William Cook from the University of Waterloo, Canada has done just that on a much grander scale than could be accomplished in one night of festivities. Using the "traveling salesman problem" approach, Cook plotted the coordinates of 24,727 pubs in the U.K. to ascertain the shortest possible route between them all.
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