Speak up: Low-voiced chief executives tend to run bigger companies

Story highlights

A new study shows that the lower a CEO's voice, the larger his company and paychecks tend to be

It is still unclear why lower-voiced CEOs are more successful

Image consultants say executives can learn to alter voice pitch

Leaders can also convey power by how they dress

CNN  — 

It is well know that leaders at the highest echelons of politics and business tend to be taller – an advantage called the “height premium.” Now, research shows a similar correlation with voice pitch: the lower a CEO’s voice, the larger his company and paychecks tend to be.

The new study, led by professors at Duke University’s Fuqua School of Business and the University of California at San Diego, looked at the voice pitches of nearly 800 male CEOs speaking in public in the U.S.

Past research already showed that in a laboratory, where researchers played voices that had been artificially manipulated to various pitches, people preferred the lower ones as leaders. So this latest report took the study to the next step, seeing if the experiments translated to the success level of real CEOs.

“It appears that the labor market is matching deeper-voiced individuals with larger firms, which means this is influencing boards of directors’ judgments, perhaps,” said William Mayew, associate professor at Fuqua, who headed the study.

But Mayew says researchers still need to figure out why this matching is happening for it to have meaningful applications.

“What we don’t know yet is where the benefit comes from. Does it come from cutting through red tape in a big corporation a bit faster if you’re more authoritative or dominant vocally?” he said.

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Voice pitch could also be related to other physical characteristics that suggest dominance, such as how tall you are, how big you are, what your facial structure is – and it is still unclear if other factors like these are the true influencers of becoming a high-earning CEO.

While research like this may imply that aspiring leaders who are short and have a high voice pitch are genetically disadvantaged, Mayew says this view places too much weight on a few physical traits.

“It takes a lot of different features that come together in order to make a person who he or she is, and I think it’d be premature to suggest that if you had a high-pitched voice or if you were short that you just have no shot of ascending to leadership ranks. There’s much more to it,” he says.

While Mayew acknowledges there are ways for CEOs to change how to speak, such as through presentation training, he is skeptical about the usefulness of speaking in an unnatural way or dressing a certain way to make up for physical disadvantages. If executives all take the same measures, he says, then one’s position relative to other CEOs does not change.

“There are certain bounds that we’re just born with,” he says.