Kotlikoff, Laurence J.; Marx, Ben; Rapson, David - 2008
consumption taxation. For any given assumption about future tax policy, assessing the relative merits of the two types of saving … IRAs are vulnerable to future income tax hikes, but may benefit from a future switch to consumption taxation if the switch … exempts withdrawals from income taxation. Roth accounts are exempt from future income tax hikes, but are exposed to future …