The United States Capitol – Washington DC

As Washington’s shock over winning the Stanley Cup demonstrates, the nation’s capital isn’t used to being first in anything. As a city, it’s not the oldest, nor the biggest, nor the richest, and its sports teams are notoriously snakebitten. But finally, the capital has a claim to No. 1—and unfortunately, it’s not just in hockey.

Ryan Murphy, an economist at Southern Methodist University, recently published a working paper in which he ranked each of the states by the predominance of—there’s no nice way to put it—psychopaths. The winner? Washington in a walk. In fact, the capital scored higher on Murphy’s scale than the next two runners-up combined.

“I had previously written on politicians and psychopathy, but I had no expectation D.C. would stand out as much as it does,” Murphy wrote in an email.

When Murphy matched up the “constellation of disinhibition, boldness and meanness” that marks psychopathy with a previously existing map of the states’ predominant personality traits, he found that dense, coastal areas scored highest by […]

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