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The Role of Commitment in Bilateral Trade

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  • Dino Gerardi
  • Johannes Horner
  • Lucas Maestri

Abstract

We examine the buyer-seller problem under different levels of commitment. The seller is informed of the quality of the good, which affects both his cost and the buyer's valuation, but the buyer is not. We characterize the allocations that can be achieved through mechanisms in which, unlike with full commitment, the buyer has the option to "walk away" after observing a given offer. We further characterize the equilibrium payoffs that can be achieved in the bargaining game in which the seller makes all the offers, as the discount factor goes to one. This allows us to identify how different levels of commitment affect outcomes, and which constraints, if any, preclude efficiency.

Suggested Citation

  • Dino Gerardi & Johannes Horner & Lucas Maestri, 2010. "The Role of Commitment in Bilateral Trade," Carlo Alberto Notebooks 151, Collegio Carlo Alberto.
    • Handle: RePEc:cca:wpaper:151
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    References listed on IDEAS

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    Cited by:

    1. Dino Gerardi & Lucas Maestri & Ignacio Monzón, 2022. "Bargaining over a Divisible Good in the Market for Lemons," American Economic Review, American Economic Association, vol. 112(5), pages 1591-1620, May.
    2. Jean Tirole, 2016. "From Bottom of the Barrel to Cream of the Crop: Sequential Screening With Positive Selection," Econometrica, Econometric Society, vol. 84(4), pages 1291-1343, July.
    3. Barsanetti, Bruno & Camargo, Braz, 2022. "Signaling in dynamic markets with adverse selection," Journal of Economic Theory, Elsevier, vol. 206(C).
    4. Camargo, Braz & Lester, Benjamin, 2014. "Trading dynamics in decentralized markets with adverse selection," Journal of Economic Theory, Elsevier, vol. 153(C), pages 534-568.
    5. Tsoy, Anton, 2018. "Alternating-offer bargaining with the global games information structure," Theoretical Economics, Econometric Society, vol. 13(2), May.
    6. Sher, Itai & Vohra, Rakesh, 2015. "Price discrimination through communication," Theoretical Economics, Econometric Society, vol. 10(2), May.
    7. Francesco Giovannoni & Toomas Hinnosaar, 2022. "Pricing Novel Goods," Papers 2208.04985, arXiv.org.
    8. Marilyn Pease & Kyungmin Kim, 2014. "Costly Search with Adverse Selection: Solicitation Curse vs. Accelerating Blessing," 2014 Meeting Papers 816, Society for Economic Dynamics.
    9. Robert Shimer & Ivan Werning, 2019. "Efficiency and information transmission in bilateral trading," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 33, pages 154-176, July.
    10. Dino Gerardi & Lucas Maestri, 2013. "Bargaining over a Divisible Good in the Market for Lemons," Carlo Alberto Notebooks 312, Collegio Carlo Alberto.
    11. Ayça Kaya & Kyungmin Kim, 2018. "Trading Dynamics with Private Buyer Signals in the Market for Lemons," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 85(4), pages 2318-2352.

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    More about this item

    Keywords

    bargaining; mechanism design; market for lemons;
    All these keywords.

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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