Kids leaving home doesn't always lead to parents saving more

Raising kids costs a lot of money, so when they finally strike out on their own it stands to reason that parents would have more money to spend, save or invest. How they spend that money can have large consequences for their retirement security.

A report by Boston College's Center for Retirement Research found that empty nesters do increase savings, but the increases are "extremely small," suggesting that baby boomers may be losing out on a critical opportunity to save for retirement.

"If you want to believe that households are saving enough for retirement, then you have to believe that their savings will increase dramatically when the kids leave and we're not...