Income Uncertainty and IRAs

In a precautionary savings setting, since Individual Retirement Accounts (IRAs) are poor substitutes for precautionary savings due to early withdrawal penalties, those facing more income uncertainty are expected to prefer more liquid assets. This paper investigates the role of income uncertainty in IRA participation. Confidential tax panel data is used to construct a measure of income uncertainty. Greater income uncertainty is found to have a negative influence on IRA participation for those in the immediate pre-retirement stage of the life-cycle. The results appear to be consistent with buffer-stock models of savings where income uncertainty is predicted to have a large effect on wealth accumulation beginning around age 50.