This paper examines whether commercial radio stations try to play their commercials at the same time. A simple model shows that stations may want to choose the same times (coordination) or different times (differentiation) depending on how listeners behave. It also shows that how much...

This paper analyzes the dynamics of prices in two online secondary markets for Major League Baseball tickets. Controlling for ticket quality, prices tend to decline significantly as a game approaches. The paper describes and tests alternative theoretical explanations for why this happens in...