Price dispersion in simultaneous online auctions is a puzzle in light of the relatively low search costs required to … find the lower price. Much of this price dispersion appears to be due to a lack of switching by bidders between auctions … controlled field experiment involving pairs of simultaneous auctions. Keeping the sellers and the goods sold identical between …

Even though auctions are capturing an increasing share of commerce, they are typically treated in the theoretical … single buyer facing multiple sellers. In this paper, we review the state of the art of competition between auctions. We … consider three different types of competition: competition between auctions, competition between formats, and competition …