An interesting business report entitled Innovation without Age Limits can be found on MIT's Technology Review website (http://www.technologyreview.com/news/426760/innovation-without-age-limits/)

Some takeaways from this article follow:

1. Young stars dominate the technology headlines. But outside the Internet, research shows, innovators are actually getting older as complexity rises.
2. Research by Wadhwa (2012) revealed that the average and median age of the founders of successful U.S. technology businesses (with real revenues) is 39. We found twice as many successful founders over 50 as under 25, and twice as many over 60 as under 20. So everyone has a shot at success, but age provides a distinct advantage.
3. The young have the outrageous ideas, but its older people who achieve business success.
4. Kellogg School of Management economist Benjamin F. Jones looked at the backgrounds of Nobel Prize winners and other great inventors of the 20th century. He found that the average age at which they made their greatest innovations was 39. The largest mass of great advances – 72 percent – came in an inventor’s 30s and 40s, and only 7 percent came before the age of 26.

Wadhwa, V. (2012, February 1). Innovation without age Limits. MIT Technology Review.