In second price internet auctions with a fixed end time, such as those on eBay, many bidders snipe , i.e., they submit their bids in the closing minutes or seconds of an auction. Late bids of this sort are much less frequent in auctions that are automatically extended if a bid is submitted very...

In second price internet auctions with a fixed end time, such as those on eBay, many bidders 'snipe', i.e., they submit their bids in the closing minutes or seconds of an auction. Late bids of this sort are much less frequent in auctions that are automatically extended if a bid is submitted very...

In second price internet auctions with a fixed end time, such as those on eBay, many bidders "snipe", i.e., they submit their bids in the closing minutes or seconds of an auction. Late bids of this sort are much less frequent in auctions that are automatically extended if a bid is submitted very...

Internet auctions have recently gained widespread popularity and are one of the most successful forms of electronic commerce. We examine a dataset of eBay coin auctions to explore features of online bidding and selling behavior. We find that profit margins for bidders are slim on average, that...