| Dutch auction ： ウィキペディア英語版|
A Dutch auction is a type of auction in which the auctioneer begins with a high asking price which is lowered until some participant is willing to accept the auctioneer's price, or a predetermined reserve price (the seller's minimum acceptable price) is reached. The winning participant pays the last announced price. This is also known as a clock auction or an open-outcry descending-price auction.
This type of auction is convenient when it is important to auction goods quickly, since a sale never requires more than one bid. Theoretically, the bidding strategy and results of this auction are equivalent to those in a sealed first-price auction.
== Auction process ==
In a Dutch auction, the item being sold is initially offered at a very high price, well in excess of the amount the seller expects to receive. Bids are not sealed, as they are in some types of auctions. The price is lowered in decrements until a bidder accepts the current price. That bidder wins the auction and pays that price for the item. For example, suppose a business is auctioning off a used company car. The bidding may start at $15,000. The bidders will wait as the price is successively reduced to $14,000, $13,000, $12,000, $11,000 and $10,000. When the price reaches $10,000, Bidder A decides to accept that price and, because he is the first bidder to do so, wins the auction and has to pay $10,000 for the car.
Dutch auctions are a competitive alternative to a traditional auction, in which bids of increasing value are made until a final selling price is reached, because due to ever-decreasing bids buyers must act decisively to name their price or risk losing to a higher offer.〔(【引用サイトリンク】title=Dutch Auction Software with Epiq Tech )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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