NEW YORK (MainStreet) Female movie stars make the most money on average per film at age 34 years old while male stars earn the most at 51, according to a new study.
The Journal of Management Inquiry found that while women's salaries saw a dramatic plunge as they aged, the drop off after an earnings peak was much less for men. But age isn't the only factor that impacts standing especially when it comes to branding and endorsement deals.
"Celebrities are cut from the consideration list daily because of their personal life decisions," said Jeetendr Sehdev, a branding expert and author of the book Superstar: The Art & Science of Celebrity Branding.
There are up to 25 celebrity indexes that follow famous people, such as Jessica Alba, Beyoncé, Lindsay Lohan and Tiger Woods.
"A celebrity can have an effect on the performance of companies they represent. The celebrity index tracks that effect," said Fred Fuld who created the indexes. "When I ran the index on Tiger Woods at the end of 2009, during all the controversy, his index underperformed the Dow."
Stockerblog's celebrity indexes include companies the celebrity has endorsed or done business with. For example, the best performing among them currently is the Gisele Bündchen Stock Index, which includes Volkswagen, Ralph Lauren, Disney and Proctor & Gamble.
"She promotes a lot of products in Brazil and the U.S.," said Fuld. "They are all listed in her celebrity index."
Bundchen's index has outperformed the S&P 500 by 14%, and since January 2011 her index is up 25.7%. Second to the Brazilian's index is Heidi Klum, another super model turned successful business woman. "Over the last seven years, Heidi's index has increased 90.3%," Fuld said. "It is interesting to note that the two top supermodel indexes have significantly outperformed actresses like Angelina Jolie and Nicole Kidman."