data. Moreover, numerous innovations in auction-design features on platforms such as eBay have created excellent research …-now options) in online auctions, as well as some of the literature dealing with online-auction design (including stopping rules …

have a fixed end time. A natural experiment is available because the auctions on Amazon, while operating under otherwise … passed without a bid. The strategic differences in the auction rules are reflected in the auction data by significantly more … about ending the auction playing an important role …

“per install” basis—plays a major role in the mix and characteristics of auction winners, and, consequently, in their … number of such users. The distortion becomes worse as the auction gets more competitive and the number of bidders increases …

auctions have to teach us about auction design …

, versus the option of making the reserve public by using it as the minimum bid level. In a field experiment, we auction 50 … that secret reserve prices make us worse off as sellers, by reducing the probability of the auction resulting in a sale …, deterring serious bidders from entering the auction, and lowering the expected transaction price of the auction. We also present …

profit of larger firms. We explain these findings by connecting to the theory of optimal auction design …

customer bids, and dealers observing customer bid can predict the auction cutoff price better. Customers also respond …

lowers mean borrowing costs by 9-10%. We estimate a structural auction model to measure markups and to illustrate and …