Implicit taxes in Social Security, which measure Social Security contributions net of benefits accrued as a percentage of earnings, tend to increase over the life cycle. In this paper, we examine the effects of three potential policy changes on implicit Social Security tax rates: extending the...

When information on longevity (survival functions) is unknown early in life, individuals have an interest to insure themselves against future "risk-class" classification. Accordingly, the First-Best typically involves transfers across states of nature. Competitive equilibrium cannot provide such...

In a perfectly competitive market for annuities with full information, the price of annuities is equal to individuals (discounted) survival probabilities. That is, prices are actuarially fair. In contrast, the pricing implicit in social security systems invariably allows for cross subsidization...