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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]
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 ...
A Dutch auction is one of several similar types of auctions for buying or selling goods. [1] [2] [3] Most commonly, it means an auction in which the auctioneer begins with a high asking price in the case of selling, and lowers it until some participant accepts the price, or it reaches a predetermined reserve price.
Bidders submit written bids without knowing the bid of the other people in the auction. The highest bidder wins but the price paid is the second-highest bid. This type of auction is strategically similar to an English auction and gives bidders an incentive to bid their true value. The auction was first described academically by Columbia ...
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]
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In Dutch and Japanese auctions, the bids are confirmations. In a version of the Brazilian auction, bids are numbers of units being traded. Structure elements of a bid are called attributes. If a bid is one number like price, it is a single-attribute auction. If bids consists of multiple-attributes, it is a multi-attribute auction. [69] [70]