Do the Poor Pay More? An Empirical Investigation of Price Dispersion in Food Retailing

On the question of whether prices are higher in poor, urban neighborhoods, the prior research is decidedly mixed. This paper revisits the question by analyzing unpublished price-level data collected by the Bureau of Labor Statistics for construction of the Consumer Price Index. Using this large, statistically representative sample of stores in poor and affluent neighborhoods, I first estimate if a price difference exists. I then empirically test the major arguments in support of disparate prices such as differences in quality, operating and consumer search costs. I also explore the relationship between pricing strategies and the racial and ethnic composition of poor neighborhoods. I find that market prices are up to 6 percent less in poor neighborhoods after controlling for a variety of covariates. In addition, I find that poor, predominantly white and Hispanic neighborhoods experience significant discounts, while market prices in poor, predominantly black neighborhoods are comparable to those in affluent white areas.