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 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...

This paper measures the potential degree of monopsony power that Wal-Mart can exert over retail workers using a dominant-firm model and nationwide, county-level data, presenting for the first time a measure of the company's potential anti-competitive behavior and detailed spatial impacts on...