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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 ...
This is a list of bidding systems used in contract bridge. [1] [2] Systems listed have either had an historical impact on the development of bidding in the game or have been or are currently being used at the national or international levels of competition.
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]
Suppose that a buyer has value v and bids b. His opponent bids according to the equilibrium bidding strategy. The support of the opponent's bid distribution is [0,B(1)]. Thus any bid of at least B(1) wins with probability 1. Therefore, the best bid b lies in the interval [0,B(1)] and so we can write this bid as b = B(x) where x lies in [0,1].
The terms Vickrey auction and second-price sealed-bid auction are, in this case only, equivalent and used interchangeably. In the case of multiple identical goods, the bidders submit inverse demand curves and pay the opportunity cost. [4] Vickrey auctions are much studied in economic literature but uncommon in practice.
A first-price sealed-bid auction (FPSBA) is a common type of auction. It is also known as blind auction. [1] In this type of auction, all bidders simultaneously submit sealed bids so that no bidder knows the bid of any other participant. The highest bidder pays the price that was submitted. [2]: p2 [3]
A well-known special case is the Vickrey auction, or the sealed second-bid auction. Here, there is only a single item, and the set contains + possible outcomes: either sell the item to one of the agents, or not to sell it at all. In step 3, the winner agent is paid 0 (since the total value of the others is 0) and the losers receive a payment ...
An English auction is an open-outcry ascending dynamic auction. It proceeds as follows. The auctioneer opens the auction by announcing a suggested opening bid, a starting price, or a reserve for the item on sale. Then the auctioneer accepts increasingly higher bids from the floor and sometimes from other sources, for example online or telephone ...