We consider a two-period model with two sellers and one buyer in which the efficient outcome calls for the buyer to purchase one unit from each seller in each period. We show that when the buyer's valuations between periods are linked by switching costs and at least one seller is financially...

This paper provides evidence of the incidence and variety of low-price guarantees (promises to match or beat a rival's price) using data obtained from newspaper advertisements in thirty-seven metropolitan areas in the United States. In all, we have a total of five-hundred and fifteen low-price...