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Antiquorum is an auctioneer of modern and vintage timepieces. Established in Geneva in 1974, Antiquorum was the first auction house to auction fine watches over the Internet in the 1990s. [1] The company was founded in Geneva in 1974 and expanded to have branches in ten cities, including New York, London, Moscow, Paris, Milan, Munich, Shanghai ...
A Vickrey–Clarke–Groves (VCG) auction is a type of sealed-bid auction of multiple items. Bidders submit bids that report their valuations for the items, without knowing the bids of the other bidders. The auction system assigns the items in a socially optimal manner: it charges each individual the harm they cause to other bidders. [1]
The structural elements of a bid are called designated attributes. Attributes may be verifiable, unverifiable, or auctioneer-provided. [5] If bids include a single quality, such as price, the auction is referred to as a single-attribute auction. Generally, bids are prices in English auctions, and confirmations in Dutch and Japanese auctions.
The generalized second-price auction (GSP) is a non-truthful auction mechanism for multiple items. Each bidder places a bid. The highest bidder gets the first slot, the second-highest, the second slot and so on, but the highest bidder pays the price bid by the second-highest bidder, the second-highest pays the price bid by the third-highest, and so on.
A double auction is a process of buying and selling goods with multiple sellers and multiple buyers. [1] Potential buyers submit their bids and potential sellers submit their ask prices to the market institution, and then the market institution chooses some price p that clears the market: all the sellers who asked less than p sell and all buyers who bid more than p buy at this price p.
However, online auction sites, unlike live auctions, usually have an automatic bidding system which allows a bidder to enter their maximum acceptable bid. This is a hidden or proxy bid, known to the system, but not any other bidders; during the auction the actual bid is incremented only enough to beat the existing highest bid. For example, if ...
The more familiar the auction system is, the more situations where auctions are conducted. There are auctions for various things, such as livestock, rare and unusual items, and financial assets. Non-cooperative games have a long history, beginning with Cournot's duopoly model.
Based on an auction system designed by the economist William Vickrey, the OpenIPO auction uses a mathematical model to treat all qualifying bids impartially. It is similar to the model used to auction Treasury bills, notes, and bonds. Just like in a typical auction, the highest bidders win in an OpenIPO auction, but there are important differences.