Internet auctions, such as those on eBay, are known for multiple bidding and sniping. Buyers send bids in the closing … times at the same auction. We model Internet auction as a dynamic multi-unit auction. This let us explain the rationality of … seconds of an auction, knowing that bids arriving after the closure of the auction are not counted. They also bid several …

bidding rings. In equilibrium, collusive negotiations are either successful or are avoided altogether, hence such analysis … likely to affect the bidding behavior in first-price (but not second-price) auctions. We test experimentally a setup in which … collusion in first-price and second-price auctions. Furthermore, failed collusion attempts distort the bidding behavior in the …

We study entry and bidding patterns in sealed bid and open auctions with heterogeneous bidders. Using data from U ….S. Forest Service timber auctions, we document a set of systematic effects of auction format: sealed bid auctions attract more … for these qualitative effects of auction format. We then calibrate the model using parameters estimated from the data and …

We analyze the welfare consequences of an increase in the commissions charged by the organizer of an auction … of tax incidence in consumer economics. We argue, however, that auction markets deserve a separate treatment. Indeed we …

as their bidding strategies and it precludes the auction from generating a cost-effective allocation of permits, as it …-unit, multi-bid uniform auction, modelled as a Bayesian game of incomplete information. At the auction each firm anticipates his … would occur in simpler auction models. Auctioning tends to be more cost-effective than grandfathering when the firms' costs …