Though millions of US workers have 401(k) plans, few studies evaluate participant investment performance. Using data on over 1,000 401(k) plans and their participants, we identify key portfolio investment inefficiencies and attribute them to offered investment menus versus individual portfolio...

We present stochastic forecasts of the Social Security trust fund by modeling key demographic and economic variables as historical time series, and using the fitted models to generate computer simulations of future fund performance. We evaluate several plans for achieving long-term solvency by...

This project evaluates how workers might invest their Personal Retirement Account (PRA) funds between safe and risky assets, depending on whether they are offered a rate of return guarantee on the risky asset. We focus on how asset allocation decisions might differ depending on participants'...

Our findings suggest that although the consequences of the decline in the stock market are serious for those approaching their retirement, the average person approaching retirement age is not likely to suffer a life changing financial loss from the stock market downturn of 2008-2009. Similarly,...

In April of 2013, the Pension Research Council of the Wharton School at the University of Pennsylvania convened a Technical Review Panel, comprising ten experts whose task it was to review the Pension Benefit Guaranty Corporation's (PBGC) Pension Insurance Modeling System (PIMS), including...

The U.S. Social Security system has helped keep many retirees out of poverty. However, according to the Social Security and Medicare Trustees, Social Security faces a future financial shortfall of $10.4 trillion in present value. This enormous imbalance has received little attention in public...

This paper simulates the retirement effects of the various elements of proposals made by the President's Commission to Strengthen Social Security (CSSS). Simulations are based on a structural dynamic model of retirement and savings estimated with data from the first five waves of the Health and...

In this paper, we compute distributions of rates of return by cohort for the Social Security retirement system, using a combination of historical data and stochastic forecasts of productivity and mortality rates. Since our forecasts of productivity and mortality are stochastic, the...

State and local government pension plans cover about 19.5 million participants, and many participants are heavily reliant on these pensions for retirement income. Most of these plans, however, are underfunded. Based on data from the Health and Retirement Study, we examined the lifetime work...

Few private defined benefit pension plans commit to indexing benefits after a worker begins receiving them. Previous (now dated) research found that most plans did, nonetheless, make "voluntary" adjustments, which compensated for roughly 40 percent of the price increases experienced since...