Could the retirement pension be making a comeback?

Why news from IBM and talk of 'lifetime income' may lead to alternatives to traditional 401(k)s Remember the "three-legged stool?" That phrase was used for decades to describe Americans' chief sources of retirement income: Social Security, private pensions and personal savings. But in the 1990s and early 2000s, employers started freezing or eliminating defined-benefit pensions they funded and replacing them with 401(k) retirement plans requiring employee contributions. As a result, the stool got wobbly. Today, just 15% of private employers offer...