“The pattern of consumption smoothing has relevant implications for household debt, nutrition and health care of children, homeownership, and many other public policy areas,” they write.
However, the theory doesn’t always hold up in the real world, the researchers find. While the average household turned out to be fairly adept at smoothing consumption in response to income variations and economic uncertainty, many households had trouble sticking to long-term budgets and responded more sharply to short-term windfalls and downturns, according to the research.
When trouble did hit, households that couldn’t smooth their spending suffered the most. Those with lower-middle-class incomes were especially vulnerable, the researchers find, and households headed by men were more adversely affected by increases in local unemployment risk than those headed by women.Neither education nor race was a statistically significant predictor of consumption smoothing.
Of all the income levels, households that generated between $30,000 and $60,000 a year exhibited the choppiest consumption, according to Kroeger and Cotti. A big reason, they write, is that “these households are likely to be the least protected from income fluctuations with either saved assets or welfare assistance for food, rent or medical care.”
Crunching the data over a full decade also helped the researchers distinguish deliberate spending—the kind driven by long-term income expectations—from reactions to unexpected shocks. The researchers find that at all income levels, at least some households wound up spending what they took in regardless of future expectations. Lower-income households, however, found it hardest to smooth their outlays, the researchers find.
This presents an ongoing worry for policy makers in light of the current economic recession. Compounding the concern, households living near the poverty line may be encouraged to take out payday loans and open steep-interest credit cards that higher-income households tend to avoid.