Zone pricing in wholesale gasoline markets is a contentious topic in the public policy debate. Refiners contend that they use zone pricing to be competitive with local rivals. Critics claim that zone pricing benefits the oil industry and harms consumers. With a controlled experiment, we...

This paper develops and tests implications of an oligopoly-pricing model. The model predicts that during a demand expansion, the short run competitive price is a pure strategy Nash equilibrium but in a recession, firms set prices above the competitive price. Thus, price markups over the...

In this paper we report the findings of an experiment that examines the effects of automated mitigation procedures (AMP) on capacity investment prices of suppliers in a wholesale electricity market. Specifically, in a 2 x 2 design we examine the effects of strong and weak market power incentives...