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    Dominant Strategy in English Auction

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    1. Consider the following ascending price auction for some good. Each bidder starts with his or her finger on a button. The price starts to rise automatically (imagine it is shown on a screen), starting from v0. The bidders watch the rising price and, when a bidder no longer wishes to participate, he or she lifts his or finger from the button. Once he or she has lifted his
    or her finger, he or she is out of the auction for good (i.e., no one can go back in). As soon as only one button is being pressed (i.e., as soon as the next-to-last bidder exits), the auction stops and the bidder still pressing his or her button gets the good at the price shown on the screen. Assume that the good in question is a pure private-value good; that is, its value to
    an individual bidder is independent of its value to any other bidder. Each bidder has a value v, which is drawn from the interval [v0, v1] according to a known distribution.
    (a) There is a dominant strategy for bidders to use in this auction. What is it?
    (b) Show by example that any strategy other than the dominant strategy yields a strictly lower payoff than the dominant strategy in some circumstances.

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    Solution Preview

    See the attached file. Thanks

    Why isn't this considered a second-price auction (as opposed to an English auction as you emntioned) The dominant strategy would be to release the button after the price you are willing to pay has disappeared (but before the next price appears). Essentially, you want to place a bid at what the value of ...

    Solution Summary

    This post explains in simple words what the dominant strategy in an Auction is? First it identify the type of auction involved based on the characteristics of the auction process and then discusses the dominant strategy. In the second part it explains why any other strategy would result in inferior results to the bidders. (Approx 500 words)