A monopoly that sells to brand-name loyal customers and to price-sensitive customers must decide whether to carry both name-brand and a private-label products and how much to charge. The monopoly may charge either more or less for the brand name if it carries a private label, and the price...

Retail and wholesale gasoline prices vary over time and across geographic locations due to differences in government policies and other factors that affect demand, costs, and market power. We use a two-equation, reduced-form model to determine the relative importance of these various factors...