Female movie stars make the most money per film when they are 34 years old, but their earnings quickly decline after that age, according to a study published Wednesday in the Journal of Management Inquiry.
Male movie stars peak in their earnings per film at age 51, and their compensation steadily increases over time.
While in their 20s, female actors' compensation outpaces their male counterparts.
Researchers examined the compensation of 265 film actors and actresses who have starred in movies from 1968 to 2008.
"This is a microcosm of what happens in society," said Timothy Judge, a management professor at the University of Notre Dame and one of the study's lead authors, in an interview with USA TODAY Network.
"We are such an appearance-based society," he said, offering one theory as to why this disparity exists.
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