Chief executives officers with large signatures are more likely to be narcissists, a new study has suggests.
They're also more likely to get higher pay checks and ironically, run their companies in their ground by making poor decisions.
"We find that CEO signature size is positively associated with a number of proxies for overinvestment, and that abnormal investment by narcissists destroys firm value via reduced sales growth and future revenues," the University of North Carolina study states.
Researchers with the university's Feenan-Flagler Business School pored over CEOs' signatures from annual reports of S and P 500 companies, the New York Daily News reported.
They submitted the signatures to a software program which then measured their areas.
"We standardized the measure by dividing the area by the number letters in the CEO's signature," Professor Sean Wang told ABC News.
Some signature experts have raised their eyebrows at the study's findings. But Wang and his colleagues pointed to a telling real-life example.
Carly Fiorina of Hewlett-Packard has a bigger signature than Michael Dell of Dell. Dell, according to Fast Company, has done better than HP by getting greater returns on its investments.
One of the world's most well-known execs, Donald Trump, didn't make the study.
But Wang said that his signature wouldn't score that high in terms of narcissism.
"It's not huge, relative to others," he said. (ANI)