The extent of the demographic changes in Europe is dramatic and will deeply affect future labor, financial and goods markets. The expected strain on public budgets and especially social security has already received prominent attention, but aging poses many other economic challenges that...

How much does the current social security system really redistribute from rich to poor? We use the PSID to estimate lifetime wage profiles and actual earnings each year for a sample of 1778 individuals, and we use mortality probabilities to calculate expected payroll taxes and social security...

The Social Security earnings test reduces benefits at a 33-50% rate once earnings pass a threshold amount - among the highest marginal tax rates in the economy. Previous research dismissed the importance of the earnings test but failed to take advantage of three changes in the earnings test...

166 countries have some kind of public old age pension. What economic forces create and sustain old age Social Security as a public program? We document some of the internationally and historically common features of Social Security programs including explicit and implicit taxes on labor supply,...

Social Security trust fund portfolio diversification to include some equities reduces the equity premium by raising the safe real interest rate. This requires changes in taxes. Under the hypothesis of constant marginal returns to risky investments, trust fund diversification lowers the price of...

A program of Personal Retirement Accounts (PRAs) funded by deposits equal to 2.3 percent of earnings (up to the Social Security maximum) would permit retirees to receive more income in retirement than with the current Social Security program while at the same time making it unnecessary to...

The delayed retirement credit (DRC) increases monthly OASI (Old Age and Survivors Insurance) benefits for primary beneficiaries who claim after their full retirement age (FRA). For many years, the DRC was set at 3.0 percent per year (0.25 percent monthly). The 1983 amendments to Social Security...