This is one aspect of the ACT III phenomenon.
More than five million Americans age 55 or older run their own businesses or are otherwise self-employed, according to the Small Business Administration. And the number of self-employed people ages 55 to 64 is soaring, the agency says, climbing 52 percent from 2000 to 2007.
People 55 and Older Start Own Businesses in Growing Numbers - NYTimes.com
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