An auction is usually a process of buying and selling goods or services by offering them up for bids, taking bids, and then selling the item to the highest...

An online auction (also electronic auction, e-auction, virtual auction, or eAuction) is an auction held over the internet and accessed by internet connected...

A Dutch auction is one of several similar types of auctions for buying or selling goods. Most commonly, it means an auction in which the auctioneer begins...

An English auction is an open-outcry ascending dynamic auction. It proceeds as follows. The auctioneer opens the auction by announcing a suggested opening...

A reverse auction (also known as buyer-determined auction or procurement auction) is a type of auction in which the traditional roles of buyer and seller...

Yahoo! Auctions is a service set up by the online search giant Yahoo! in 1998 to compete against eBay. There are currently only two localizations of the...

Auction sniping (also called bid sniping) is the practice, in a timed online auction, of placing a bid likely to exceed the current highest bid (which...

A Vickrey auction or sealed-bid second-price auction (SBSPA) is a type of sealed-bid auction. Bidders submit written bids without knowing the bid of the...

Chinese auction is a type of the all-pay auction, where the probability of winning depends on the relative size of a participant's bid. The choice of the...

A no-reserve auction (NR), also known as an absolute auction, is an auction in which the item for sale will be sold regardless of price. From the seller's...