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English Auction
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 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 bids, consisting of buyers with an interest in the item. The auctioneer usually determines the minimum increment of bids, often making them larger as bidding reaches higher levels. * The highest bidder at any given moment is considered to have the standing bid, which can only be displaced by a higher bid from a competing buyer. * If no competing bidder challenges the standing bid within the time allowed by the auctioneer, the standing bid becomes the winner, and the item is sold to the highest bidder at a price equal to their bid. *If no bidder accepts the starting price, the auctioneer either begins to lower the starting price in increme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auction
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 bidder or buying the item from the lowest bidder. Some exceptions to this definition exist and are described in the section about different types. The branch of economic theory dealing with auction types and participants' behavior in auctions is called auction theory. The open ascending price auction is arguably the most common form of auction and has been used throughout history. Participants bid openly against one another, with each subsequent bid being higher than the previous bid. An auctioneer may announce prices, while bidders submit bids vocally or electronically. Auctions are applied for trade in diverse contexts. These contexts include antiques, paintings, rare collectibles, expensive wines, commodities, livestock, radio spectrum, used cars, real estate, online advertising, vacation packages, emission trading, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reserve Price
In economics, a reservation (or reserve) price is a limit on the price of a good or a service. On the demand side, it is the highest price that a buyer is willing to pay; on the supply side, it is the lowest price a seller is willing to accept for a good or service. Reservation prices are commonly used in auctions, but the concept is extended beyond. A party's best alternative to a negotiated agreement (BATNA) is closely related to their reservation price. Once a party determines their BATNA, they can then calculate their reservation price. In negotiations surrounding the price of a particular good or service, the reservation price is a singular number. However, this is not the only situation in which reservation prices are seen. When multiple issues are being discussed, such as the size of salary and amount of benefits when applying for a new job position, the reservation price would be represented as a package where multiple requirements need to be met. Description In mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First-price Sealed-bid Auction
A first-price sealed-bid auction (FPSBA) is a common type of auction. It is also known as blind auction. 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. Strategic analysis In a FPSBA, each bidder is characterized by their monetary valuation of the item for sale. Suppose Alice is a bidder and her valuation is a. Then, if Alice is rational: *She will never bid more than a, because bidding more than a can only make her lose net value. *If she bids exactly a, then she will not lose but also not gain any positive value. *If she bids less than a, then she ''may'' have some positive gain, but the exact gain depends on the bids of the others. Alice would like to bid the smallest amount that can make her win the item, as long as this amount is less than a. For example, if there is another bidder Bob and he bids y and y [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vickrey Auction
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 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 University professor William Vickrey in 1961 though it had been used by stamp collectors since 1893. In 1797 Johann Wolfgang von Goethe sold a manuscript using a sealed-bid, second-price auction. Vickrey's original paper mainly considered auctions where only a single, indivisible good is being sold. 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. Vickrey auctions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Auction
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 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. This type of price auction is most commonly used for goods that are required to be sold quickly such as flowers, fresh produce, or tobacco. A Dutch auction has also been called a ''clock auction'' or ''open-outcry descending-price auction''. This type of auction shows the advantage of speed since a sale never requires more than one bid. It is strategically similar to a first-price sealed-bid auction. History Herodotus relates an account of a descending price auction in Babylon, suggesting that market mechanisms similar to Dutch auctions were used in ancient times. Descending-price auctions were used in 17th-century Holland for estate sales and paintings. The Dutch manner of auct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signal
In signal processing, a signal is a function that conveys information about a phenomenon. Any quantity that can vary over space or time can be used as a signal to share messages between observers. The ''IEEE Transactions on Signal Processing'' includes audio, video, speech, image, sonar, and radar as examples of signal. A signal may also be defined as observable change in a quantity over space or time (a time series), even if it does not carry information. In nature, signals can be actions done by an organism to alert other organisms, ranging from the release of plant chemicals to warn nearby plants of a predator, to sounds or motions made by animals to alert other animals of food. Signaling occurs in all organisms even at cellular levels, with cell signaling. Signaling theory, in evolutionary biology, proposes that a substantial driver for evolution is the ability of animals to communicate with each other by developing ways of signaling. In human engineering, signals are typi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sovereign State
A sovereign state or sovereign country, is a polity, political entity represented by one central government that has supreme legitimate authority over territory. International law defines sovereign states as having a permanent population, defined territory (see territorial disputes), one government, and the capacity to enter into International relations, relations with other sovereign states. It is also normally understood that a Sovereignty#Sovereignty and independence, sovereign state is independent. According to the declarative theory of statehood, a sovereign state can exist without being Diplomatic recognition, recognised by other sovereign states.Thomas D. Grant, ''The recognition of states: law and practice in debate and evolution'' (Westport, Connecticut: Praeger, 1999), chapter 1. List of states with limited recognition, Unrecognised states will often find it difficult to exercise full treaty-making powers or engage in Diplomacy, diplomatic relations with other sovereign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Housing Cooperatives
A housing cooperative, or housing co-op, is a legal entity, usually a cooperative or a corporation, which owns real estate, consisting of one or more residential buildings; it is one type of housing tenure. Housing cooperatives are a distinctive form of home ownership that have many characteristics that differ from other residential arrangements such as single family home ownership, condominiums and renting. The corporation is membership based, with membership granted by way of a share purchase in the cooperative. Each shareholder in the legal entity is granted the right to occupy one housing unit. A primary advantage of the housing cooperative is the pooling of the members' resources so that their buying power is leveraged; thus lowering the cost per member in all the services and products associated with home ownership. Another key element in some forms of housing cooperatives is that the members, through their elected representatives, screen and select who may live in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candle Auction
A candle auction, or auction by the candle, is a variation on the typical English auction that became popular in the 17th and 18th centuries.R.W. Patten. "Tatworth Candle Auction." ''Folklore'' 81, No. 2 (Summer 1970), 132-135 In a candle auction, the end of the auction is signaled by the expiration of a candle flame, which was intended to ensure that no one could know exactly when the auction would end and make a last-second bid. Sometimes, other unpredictable processes, such as a footrace, were used in place of the expiration of a candle. Auction by the candle was known in England by 1641, when it is mentioned in the records of the House of Lords.William S. Walsh ''A Handy Book Of Curious Information Comprising Strange Happenings in the Life of Men and Animals, Odd Statistics, Extraordinary Phenomena and Out of the Way Facts Concerning the Wonderlands of the Earth.'' Philadelphia: J.B. Lippincott Co., 1913. 63-64. The practice rapidly became popular, and in 1652, John Milton wrot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candle
A candle is an ignitable wick embedded in wax, or another flammable solid substance such as tallow, that provides light, and in some cases, a fragrance. A candle can also provide heat or a method of keeping time. A person who makes candles is traditionally known as a chandler. Various devices have been invented to hold candles, from simple tabletop candlesticks, also known as candle holders, to elaborate candelabra and chandeliers. For a candle to burn, a heat source (commonly a naked flame from a match or lighter) is used to light the candle's wick, which melts and vaporizes a small amount of fuel (the wax). Once vaporized, the fuel combines with oxygen in the atmosphere to ignite and form a constant flame. This flame provides sufficient heat to keep the candle burning via a self-sustaining chain of events: the heat of the flame melts the top of the mass of solid fuel; the liquefied fuel then moves upward through the wick via capillary action; the liquefied fuel finally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Auction
A Japanese auction (also called ascending clock auction) is a dynamic auction format. It proceeds in the following way. * An initial price is displayed. This is usually a low price - it may be either 0 or the seller's reserve price. * All buyers that are interested in buying the item at the displayed price enter the auction arena. * The displayed price increases continuously, or by small discrete steps (e.g. one cent per second). * Each buyer may exit the arena at any moment. * No exiting buyer is allowed to re-enter the arena. * When a single buyer remains in the arena, the auction stops. The remaining buyer wins the item and pays the displayed price. Strategies Suppose a buyer believes that the value of the item is ''v''. Then this buyer has a simple dominant strategy: stay in the arena as long as the displayed price is below ''v''; exit the arena whenever the displayed price equals ''v''. This means that the Japanese auction is a truthful mechanism: it is always best to act ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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