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Never say never: Optimal exclusion and reserve prices with expectations-based loss-averse buyers

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  • Balzer, Benjamin
  • Rosato, Antonio

Abstract

We analyze reserve prices in auctions with independent private values when bidders are expectations-based loss averse. We find that the optimal public reserve price excludes fewer bidder types than under risk neutrality. Moreover, we show that public reserve prices are not optimal as the seller can earn a higher revenue with mechanisms that better leverage the “attachment effect”. We discuss two such mechanisms: i) an auction with a secret and random reserve price, and ii) a mechanism where an auction with a public reserve price is followed by a negotiation if the reserve price is not met. Both of these mechanisms expose more bidder types to the attachment effect, thereby increasing bids and ultimately revenue.

Suggested Citation

  • Balzer, Benjamin & Rosato, Antonio, 2025. "Never say never: Optimal exclusion and reserve prices with expectations-based loss-averse buyers," Journal of Economic Theory, Elsevier, vol. 228(C).
    • Handle: RePEc:eee:jetheo:v:228:y:2025:i:c:s0022053125000912
    DOI: 10.1016/j.jet.2025.106045
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    JEL classification:

    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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