Why the ‘Rothification’ of 401(k)s Would Hurt Retirees

401(k) Rothification (using after-tax, not pre-tax, money for retirement contributions) may seem like a boon to government in a time of soaring deficits and Social Security shortfalls, but this would lead many to save less and cut tax revenue in the long term, Wharton Prof. Olivia S. Mitchell explains to Knowledge@Wharton, discussing her recent study.