Elite Warrior

Dollar Auction

with 3 comments

It was proposed by economist economist Martin Shubik. It illustrates a paradox brought about by traditional rational choice theory in which players with perfect information in the game are compelled to make an ultimately irrational decision based completely on a sequence of rational choices made throughout the game.
Dollar auction is an all pay auction having two player. The auction is for a dollar bill. The
game begins with one of the players bidding 1 cent, hoping to make a 99 cent profit. The second player will quickly bid 2cents, as a 98 cent profit is still desirable. Again,first bidder bids 3 cents,converting his loss of 1 cent into a gain of 97 cents. In this way, a series of bids is maintained. However, a problem becomes visible the moment bidding reaches 99 cents. Supposing that the other player had bid 98 cents, he now has the choice of losing the 98 cents or bidding a dollar even, which would make his  profit zero. After that, the first player has a choice of either losing 99 cents or bidding $1.01, and only losing one cent. After this point the two players continue to bid the value up well beyond the dollar, and neither stands to profit.The game actually has no equilibrium, as two rational players in this game could theoretically lose all of their money to the auctioneer. Both players stand to lose money, but the winning bidder loses about 99 cents less than the losing bidder.
To end the bidding war a bidder can bid 99 cents more than the previous bid, leaving no bid that offers a potentially higher profit (or smaller loss). (For example, Bidder 1 bids $x, Bidder 2 bids $x + $0.99. If Bidder 1 were to bid $x + $0.99 + $0.01, he would be bidding to pay $x + $0.99 + $0.01 for a prize of $1, or a total loss of $x– the same as if he had not increased his previous bid.) As a special case of this, if the first bidder immediately bids $0.99, he will not be outbid by the other bidder, who has no potential to make a profit. The first bidder will earn $0.01 in profit and the second bidder will pay nothing and win nothing.

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Written by elitewarrior

March 29, 2009 at 10:56 pm

3 Responses

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  1. I want to share some bidding points like, suppose some one is selling one item is and in case of coffee mugs when they auctioned then bidders bid overall case, so this would called single unit auction. In case of bidders can buy the individual material, then this would be called Multiple Unit auction.

    bidding directory

    April 14, 2009 at 5:57 am

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    bidding directory

    April 14, 2009 at 6:00 am

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