This paper measures the degree of monopsony power exerted by Wal-Mart over retail workers using a dominant-firm model and data on contiguous U.S. counties where the company operates, presenting for the first time a measure of the anti-competitive behavior of the company. Empirical results show...

This paper investigates the effect of in-store services on retail food prices, supermarket competition, and demand using fluid milk as a case study. It is shown that higher-service supermarkets charge higher milk prices essentially because of an increase in market power due to differentiation of...

This article investigates the impacts of private labels (PLs) on fluid milk prices and price differentials using 2,759 supermarket-level observations from 10 cities. Non-parametric results reveal that although PL milk prices decrease as PL milk shares expand, eventually the effect is to increase...

This paper measures the degree of monopsony power exerted by Wal-Mart over retail workers using a dominant-firm model and data in the 48 contiguous U.S. states for counties where the company operates, presenting for the first time a measure of the company’s anticompetitive behavior. Empirical...

This paper investigates the impacts of store brands (i.e., private labels) and retail characteristics (scanners, deli, bakery, and pharmacy departments, ATMs, restaurant and store size) on fluid milk prices using 1,740 supermarket-level observations from four cities. Non-parametric results...

This article investigates the competition effects of supermarket services using fluid milk as a case study. A simultaneous equation model for services and price competition is estimated with scanner data from fifteen supermarket chains using two alternative measures of services, namely store...