An "Alternating Recognition" Model of English Auctions
AbstractWe attempt a more realistic abstraction of an English (oral ascending) auction than the standard, in Milgrom and Weber . In particular, the assumptions that exists are irrevocable and necessarily public are dropped. In the model, the price rises in a stylization of an auctioneer alternately recognizing two bidders who affirm willingness to pay the current price. The auctioneer pays attention to other bidders only when a recognized bidder exists. Such exits may be temporary, although we construct an equilibrium in which there is no benefit to exit and re-entry. The number of public exits is stochastic; frequently a losing "bidder" will remain silent, giving no indication of his willingness to pay, and hence yielding no useful inference about his private information. Hence, the source of the expected revenue advantage of English auctions over second-price auctions is only stochastically available. Moreover, when public exits are incomplete, the ordinal rank of the bidder whose private information can be inferred is unknown, making the information less valuable. Consequently, the much simpler formula for expected revenue in second-price auctions may be the preferred approximation for English auctions.
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Bibliographic InfoPaper provided by University of Bonn, Germany in its series Discussion Paper Serie B with number 348.
Date of creation: Oct 1995
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Other versions of this item:
- Ronald M. Harstad & Michael H. Rothkopf, 2000. "An "Alternating Recognition" Model of English Auctions," Management Science, INFORMS, vol. 46(1), pages 1-12, January.
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- Yin, Pai-Ling, 2007. "Empirical tests of information aggregation," International Journal of Industrial Organization, Elsevier, vol. 25(6), pages 1179-1189, December.
- Ronald M. Harstad, 2009.
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- Ronald M Harstad, 2011. "Endogenous Competition Alters the Structure of Optimal Auctions," ISER Discussion Paper 0816, Institute of Social and Economic Research, Osaka University.
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