The article below first appeared in our Washington Post column yesterday. I’m reproducing it in full here because there is an important correction, thanks to a response by Andrew Biggs. I’ve fixed the mistake and added notes in brackets to show what was fixed. Also, I want to append some additional notes about the data and some issues that didn’t fit into the column.
Recent volatility in the stock market (the S&P 500 Index losing almost 50% of its value between September and March) has led some to question the wisdom of relying on 401(k) and other defined-contribution plans, invested largely in the stock market, for our nation’s retirement security. For example, Time recently ran a cover story by Stephen Gandel entitled “Why It’s Time to Retire the 401(k).”
However, the shortcomings of our current retirement “system” predate the recent fall in the markets, will not be solved by another stock market boom. The problems are more basic: we don’t save enough, and we don’t invest very well.



