IDEAS home Printed from https://ideas.repec.org/p/trf/wpaper/517.html
   My bibliography  Save this paper

Believing when Credible: Talking about Future Plans and Past Actions

Author

Listed:
  • Schlag, Karl H.
  • Vida, Péter

Abstract

We explore in an equilibrium framework whether games with multiple Nash equilibria are easier to play when players can communicate. We consider two variants, modelling talk about future plans and talk about past actions. The language from which messages are chosen is endogenous, messages are allowed to be vague. We focus on equilibria where messages are believed whenever possible, thereby develop a theory of credible communication. Predictions confirm the longstanding intuition for Aumann’s (1990) Stag Hunt game which applies directly to an investment game with positive spillovers. Our results shed new light on the multiplicity of equilibria in economic applications.

Suggested Citation

  • Schlag, Karl H. & Vida, Péter, 2015. "Believing when Credible: Talking about Future Plans and Past Actions," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 517, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
    • Handle: RePEc:trf:wpaper:517
    as

    Download full text from publisher

    File URL: https://epub.ub.uni-muenchen.de/25291/1/517.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Charness, Gary, 2000. "Self-Serving Cheap Talk: A Test Of Aumann's Conjecture," Games and Economic Behavior, Elsevier, vol. 33(2), pages 177-194, November.
    2. Marta Serra-Garcia & Eric van Damme & Jan Potters, 2013. "Lying About What You Know Or About What You Do?," Journal of the European Economic Association, European Economic Association, vol. 11(5), pages 1204-1229, October.
    3. Stefano Demichelis & Jorgen W. Weibull, 2008. "Language, Meaning, and Games: A Model of Communication, Coordination, and Evolution," American Economic Review, American Economic Association, vol. 98(4), pages 1292-1311, September.
    4. Navin Kartik, 2009. "Strategic Communication with Lying Costs," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 76(4), pages 1359-1395.
    5. Russell Cooper & Andrew John, 1988. "Coordinating Coordination Failures in Keynesian Models," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 103(3), pages 441-463.
    6. Diamond, Peter A, 1982. "Aggregate Demand Management in Search Equilibrium," Journal of Political Economy, University of Chicago Press, vol. 90(5), pages 881-894, October.
    7. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    8. Tore Ellingsen & Robert Östling, 2010. "When Does Communication Improve Coordination?," American Economic Review, American Economic Association, vol. 100(4), pages 1695-1724, September.
    9. Tibor Scitovsky, 1954. "Two Concepts of External Economies," Journal of Political Economy, University of Chicago Press, vol. 62(2), pages 143-143.
    10. Farrell Joseph, 1993. "Meaning and Credibility in Cheap-Talk Games," Games and Economic Behavior, Elsevier, vol. 5(4), pages 514-531, October.
    11. Baliga, Sandeep & Morris, Stephen, 2002. "Co-ordination, Spillovers, and Cheap Talk," Journal of Economic Theory, Elsevier, vol. 105(2), pages 450-468, August.
    12. Schlag, Karl H. & Vida, Péter, 2013. "Commitments, Intentions, Truth and Nash Equilibria," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 438, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
    13. Joseph Farrell & Matthew Rabin, 1996. "Cheap Talk," Journal of Economic Perspectives, American Economic Association, vol. 10(3), pages 103-118, Summer.
    14. Russell Cooper & Douglas V. DeJong & Robert Forsythe & Thomas W. Ross, 1989. "Communication in the Battle of the Sexes Game: Some Experimental Results," RAND Journal of Economics, The RAND Corporation, vol. 20(4), pages 568-587, Winter.
    15. Berger, Ulrich, 2008. "Learning in games with strategic complementarities revisited," Journal of Economic Theory, Elsevier, vol. 143(1), pages 292-301, November.
    16. COOPER, R. & DEJONG, D.V. & FORSYTHE, R. & Tom Ross, 1989. "Communication In The Battle Of The Sexes Game," Carleton Industrial Organization Research Unit (CIORU) 89-03, Carleton University, Department of Economics.
    17. Blume, Andreas & Ortmann, Andreas, 2007. "The effects of costless pre-play communication: Experimental evidence from games with Pareto-ranked equilibria," Journal of Economic Theory, Elsevier, vol. 132(1), pages 274-290, January.
    18. Milgrom, Paul & Roberts, John, 1990. "Rationalizability, Learning, and Equilibrium in Games with Strategic Complementarities," Econometrica, Econometric Society, vol. 58(6), pages 1255-1277, November.
    19. Nobuhiro Kiyotaki, 1988. "Multiple Expectational Equilibria Under Monopolistic Competition," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 103(4), pages 695-713.
    20. Kartik, Navin & Ottaviani, Marco & Squintani, Francesco, 2007. "Credulity, lies, and costly talk," Journal of Economic Theory, Elsevier, vol. 134(1), pages 93-116, May.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Karl H. Schlag & Péter Vida, 2021. "Believing when credible: talking about future intentions and past actions," International Journal of Game Theory, Springer;Game Theory Society, vol. 50(4), pages 867-889, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Karl H. Schlag & Péter Vida, 2014. "Believing when Credible: Talking about Future Plans," Vienna Economics Papers 1409, University of Vienna, Department of Economics.
    2. Karl H. Schlag & Péter Vida, 2014. "Believing when Credible: Talking about Future Plans," Vienna Economics Papers vie1409, University of Vienna, Department of Economics.
    3. Karl H. Schlag & Péter Vida, 2021. "Believing when credible: talking about future intentions and past actions," International Journal of Game Theory, Springer;Game Theory Society, vol. 50(4), pages 867-889, December.
    4. Schlag, Karl H. & Vida, Péter, 2013. "Commitments, Intentions, Truth and Nash Equilibria," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 438, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
    5. Siyu Wang & Timothy Flannery, 2021. "Intention or Request: The Impact of Message Structures," Games, MDPI, vol. 12(1), pages 1-13, February.
    6. Nicolas Jacquemet & Stéphane Luchini & Jason F. Shogren & Adam Zylbersztejn, 2018. "Coordination with communication under oath," Experimental Economics, Springer;Economic Science Association, vol. 21(3), pages 627-649, September.
    7. He, Simin & Offerman, Theo & van de Ven, Jeroen, 2019. "The power and limits of sequential communication in coordination games," Journal of Economic Theory, Elsevier, vol. 181(C), pages 238-273.
    8. Sobel, Joel, 2017. "A note on pre-play communication," Games and Economic Behavior, Elsevier, vol. 102(C), pages 477-486.
    9. Feltovich, Nick & Grossman, Philip J., 2015. "How does the effect of pre-play suggestions vary with group size? Experimental evidence from a threshold public-good game," European Economic Review, Elsevier, vol. 79(C), pages 263-280.
    10. Heller, Yuval & Sturrock, David, 2017. "Promises and Endogenous Reneging Costs," MPRA Paper 78803, University Library of Munich, Germany.
    11. Tjaša Bjedov & Thierry Madiès & Marie Claire Villeval, 2016. "Communication And Coordination In A Two-Stage Game," Economic Inquiry, Western Economic Association International, vol. 54(3), pages 1519-1540, July.
    12. Tore Ellingsen & Robert Östling, 2010. "When Does Communication Improve Coordination?," American Economic Review, American Economic Association, vol. 100(4), pages 1695-1724, September.
    13. Wang, Siyu & Houser, Daniel, 2019. "Demanding or deferring? An experimental analysis of the economic value of communication with attitude," Games and Economic Behavior, Elsevier, vol. 115(C), pages 381-395.
    14. Crawford, Vincent P., 2017. "Let׳s talk it over: Coordination via preplay communication with level-k thinking," Research in Economics, Elsevier, vol. 71(1), pages 20-31.
    15. Heller, Yuval & Sturrock, David, 2020. "Promises and endogenous reneging costs," Journal of Economic Theory, Elsevier, vol. 187(C).
    16. Stefano Demichelis & Jorgen W. Weibull, 2008. "Language, Meaning, and Games: A Model of Communication, Coordination, and Evolution," American Economic Review, American Economic Association, vol. 98(4), pages 1292-1311, September.
    17. Francisca Jiménez-Jiménez & Javier Rodero Cosano, 2021. "Experimental cheap talk games: strategic complementarity and coordination," Theory and Decision, Springer, vol. 91(2), pages 235-263, September.
    18. GRANDJEAN, Gilles & MANTOVANI, Marco & MAULEON, Ana & VANNETELBOSCH, Vincent, 2014. "Whom are you talking with ? An experiment on credibility and communication structure," LIDAM Discussion Papers CORE 2014042, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    19. Serra Garcia, M. & van Damme, E.E.C. & Potters, J.J.M., 2010. "Which Words Bond? An Experiment on Signaling in a Public Good Game (replaced by CentER DP 2011-139)," Discussion Paper 2010-33, Tilburg University, Center for Economic Research.
    20. repec:hum:wpaper:sfb649dp2014-064 is not listed on IDEAS
    21. Christoph Feldhaus & Julia Stauf, 2016. "More than words: the effects of cheap talk in a volunteer’s dilemma," Experimental Economics, Springer;Economic Science Association, vol. 19(2), pages 342-359, June.

    More about this item

    Keywords

    Pre-Play Communication; Cheap Talk; Credibility; Coordination; Language; Multiple Equilibria.;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:trf:wpaper:517. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tamilla Benkelberg (email available below). General contact details of provider: https://edirc.repec.org/data/vfmunde.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.