Abstract: | This paper examines consumer response to windfall income. By using data from the 1972–73 Consumer Expenditure Surveys, an attempt was made to test Friedman's permanent income hypothesis. The results revealed that the marginal propensity to consume regular income was greater than the marginal propensity to consume windfall income for windfalls that were large relative to regular income. However, when windfall income was less than ten percent of regular income, the relationship reversed. Implications are drawn for short and long-run fiscal policies affecting consumers |