Despite claims that electronic commerce lowers search costs dramatically, and therefore makes it easy for consumers to spot the best buy, empirical studies have found a substantial degree of price dispersion in electronic markets for consumer goods. This study investigates the consumer welfare...

Why does Amazon.com make low or no profits, whereas, its bricks-and-mortar rival Borders makes substantially higher profits? Why is price dispersion high in certain categories and low in others? Why are prices for the same item higher at bricks-and-mortar retailers than they are at pure play...