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Information Disclosure by a Seller in Sequential First-Price Auctions

Helmuts Azacis ()

No E2017/2, Cardiff Economics Working Papers from Cardiff University, Cardiff Business School, Economics Section

Abstract: I study sequential first-price auctions where two items are sold to two bidders with private binary valuations. A seller, prior to the second auction, can publicly disclose some information about the outcome of the first auction. I characterize equilibrium strategies for various disclosure rules when the valuations of bidders are either perfectly positively or perfectly negatively correlated across items. I establish outcome equivalence between different disclosure rules. I find that it is optimal for the seller to disclose some information when the valuations are negatively correlated, whereas it is optimal not to disclose any information when the valuations are positively correlated. For most of the parameter values, the seller's expected revenue is higher if the losing bid is disclosed. When only the winner's identity is disclosed, the equilibrium is efficient whether the valuations are positively or nega tively correlated.

Keywords: Efficiency; Information disclosure; Seller's revenue; Sequential first-price auctions (search for similar items in EconPapers)
JEL-codes: D44 D47 D82 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-gth and nep-mic
Date: 2017-02
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