Although the life cycle/permanent income hypothesis is the primary framework for understanding household consumption and savings decisions, only a few studies have used clearly identifiable income changes to test the basic predictions of the model. The estimates produced using this empirical strategy have yet to lead to a consensus of beliefs since the results have both favored and rejected the model. This paper contributes to this literature by examining the consumption reaction to predictable increases in discretionary income following the final payment of a vehicle loan. Using data from the Consumer Expenditure Survey, the results show that a 10% increase in discretionary income due to a loan repayment leads to a 2% to 3% increase in nondurable consumption. Additional analysis suggests that these findings may be explained by the presence of borrowing constraints.

A household’s vehicle purchases are among its largest expenditure outlays. Moreover, unlike housing purchases, which a typical household may make once or twice over a lifetime, a household may well buy several cars over the same interval. The magnitude and relative frequency of vehicle purchases suggest that differential treatment by race in the vehicle market may have important implications for differences in wealth and financial wellbeing by race. Yet, whereas a robust literature in economics has studied virtually all aspects of racial treatment in the housing market, corresponding work about vehicles has been relatively sparse, with most work focusing on racial differences in prices paid (Pinelopi Goldberg (1996) and Fiona Scott-Morton, Florian Zettelmeyer, and Jorge Silva-Risso (2003)). Very little previous attention has been paid to whether there is differential racial treatment in another important outcome in the vehicle market: the interest rates that households pay on the loans used to purchase vehicles.1 Calculations using data from the Survey of Consumer Finances indicate that loans for vehicle purchases are primarily obtained from one of two sources. Roughly two-thirds of vehicle loans originate from the traditional banking sector: commercial banks, savings institutions, or credit unions. Vehicle manufacturers finance the remaining one-third of auto