Information aggregation in auctions with an unknown number of bidders
Author: Harstad, Ronald ; Pekec, Aleksandar ; Tsetlin, IliaINSEAD Area: Decision SciencesIn: Games and Economic Behavior, vol. 62, no. 2, March 2008 Language: EnglishDescription: p. 476-508.Type of document: INSEAD ArticleNote: Please ask us for this itemAbstract: Information aggregation, a key concern for uniform-price common-value auctions with many bidders, has been characterized in models where bidders know exactly how many rivals they face. A model allowing for uncertainty over the number of bidders in an auction is developed. Such a model is essential for capturing a critical condition for information to aggregate; as the numbers of winning and losing bidders grow large, information aggregates if and only if uncertainty about the fraction of winning bidders vanishes. It may be possible for the seller to impart this information by precommitting to a specified fraction of winning bidders, via a proportional selling policy. Intuitively, this could make the proportion of winners known, and thus provide all the information that bidders need to make winner's curse corrections| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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Information aggregation, a key concern for uniform-price common-value auctions with many bidders, has been characterized in models where bidders know exactly how many rivals they face. A model allowing for uncertainty over the number of bidders in an auction is developed. Such a model is essential for capturing a critical condition for information to aggregate; as the numbers of winning and losing bidders grow large, information aggregates if and only if uncertainty about the fraction of winning bidders vanishes. It may be possible for the seller to impart this information by precommitting to a specified fraction of winning bidders, via a proportional selling policy. Intuitively, this could make the proportion of winners known, and thus provide all the information that bidders need to make winner's curse corrections
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