In this paper we study the transition from a pay-as-you-go system of Social Security pensions to an investment-based system in an economy in which portfolio returns and capital profitability are both uncertain. The paper extends earlier studies by Feldstein and Samwick that modeled the...

The social security program now provides a constant real benefit throughout each retirees lifetime. This paper examines whether total welfare would rise if benefits were lower in early retirement years (when most individuals have some saving with which to finance consumption) and higher in later...

The social security program now provides a constant real benefit throughout each retirees lifetime. This paper examines whether total welfare would rise if benefits were lower in early retirement years (when most individuals have some saving with which to finance consumption) and higher in later...

Tax policy debates-and reforms-depend heavily on estimates of how alternative tax rules would affect behavior. Yet there is considerable controversy about the key empirical links among tax rates, household decisions, and revenue collections. The nine papers in this volume exploit the substantial...

The problems involved in estimating real output that I discuss in this paper cause the official government statistics to underestimate of the rates of growth of real GDP, real personal income, and productivity. That underestimation is important not just to economists trying to understand where...

Although the official statistics imply that the rate of growth of real GDP in the United States has declined in recent years, it has still been substantially higher than the real growth rates in Europe and the other industrial countries, leading to higher real per capita incomes. This paper...

The value of reported vested pension obligations depends critically on the interest rate a firm uses to discount future benefit obligations. Firms with substantial benefit obligations relative to existing pension assets tend to reduce the reported present value of their obligations by using a...