Betsey Stevenson, NPR Marketplace:
Saving for retirement is harder for women because they generally earn less over their lifetimes, said Betsey Stevenson, an economist at the University of Michigan. “For a large number of reasons,” she said. "Discrimination’s obviously up there, but so are all sorts of forms of inequality in terms of the occupations that tend to attract women and family obligations. Sixty percent of our college students are women, and women have a lot more student loans than men do."