Typical textbook treatments of tax-advantaged retirement savings focus on legalistic characteristics such as contribution limits and early withdrawal penalties. Popular press articles often present a myriad of details on the effects of inflation, rates of return, expected tax rates, ordinary...

A large body of evidence indicates individuals keep promises even if self-interest dictates otherwise. Two rationales have been put forth. First, promises form an emotional commitment to keep actions and deeds consistent, referred to as the commitment rationale. Second, promises change the...