Abstract 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...

In an attempt to improve the nation's health, many U.S. policy makers have or are considering imposing taxes on the fat in food. Dairy products constitute a large portion of at home fat consumption of particularly harmful types of fat, and nearly all U.S. households consume these products. We...