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Coordination with Communication under Oath

Author

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  • Nicolas Jacquemet

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris sciences et lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Stephane Luchini

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique)

  • Jason Shogren

    (Departement of Economics and Finance, University of Wyoming - UW - University of Wyoming)

  • Adam Zylbersztejn

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique)

Abstract

Herein we explore whether the social psychology theory of commitment via a truth-telling oath can reduce coordination failure. Using a classic sequential coordination game, we ask all players to sign voluntarily a truth-telling oath before playing the game with cheap-talk communication. Three results emerge with commitment-via-the-oath: (1) coordination increased by nearly 50 percent; (2) senders' messages were significantly more truthful and actions more efficient, and (3) receivers' trust of messages increased.

Suggested Citation

  • Nicolas Jacquemet & Stephane Luchini & Jason Shogren & Adam Zylbersztejn, 2011. "Coordination with Communication under Oath," Working Papers halshs-00635801, HAL.
  • Handle: RePEc:hal:wpaper:halshs-00635801
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    1. Ernst Fehr & Klaus M. Schmidt, 1999. "A Theory of Fairness, Competition, and Cooperation," The Quarterly Journal of Economics, Oxford University Press, vol. 114(3), pages 817-868.
    2. Charness, Gary & Dufwenberg, Martin, 2003. "Promises & Partnership," Research Papers in Economics 2003:3, Stockholm University, Department of Economics.
    3. Nobuyuki Hanaki & Nicolas Jacquemet & Stéphane Luchini & Adam Zylbersztejn, 2016. "Cognitive ability and the effect of strategic uncertainty," Theory and Decision, Springer, vol. 81(1), pages 101-121, June.
    4. Nicolas Jacquemet & Adam Zylbersztejn, 2014. "What drives failure to maximize payoffs in the lab? A test of the inequality aversion hypothesis," Review of Economic Design, Springer;Society for Economic Design, vol. 18(4), pages 243-264, December.
    5. Van Huyck John B. & Battalio Raymond C. & Beil Richard O., 1993. "Asset Markets as an Equilibrium Selection Mechanism: Coordination Failure, Game Form Auctions, and Tacit Communication," Games and Economic Behavior, Elsevier, vol. 5(3), pages 485-504, July.
    6. Jacquemet, Nicolas & Joule, Robert-Vincent & Luchini, Stéphane & Shogren, Jason F., 2013. "Preference elicitation under oath," Journal of Environmental Economics and Management, Elsevier, vol. 65(1), pages 110-132.
    7. Giovanna Devetag & Andreas Ortmann, 2007. "When and why? A critical survey on coordination failure in the laboratory," Experimental Economics, Springer;Economic Science Association, vol. 10(3), pages 331-344, September.
    8. Van Huyck, John B & Battalio, Raymond C & Beil, Richard O, 1990. "Tacit Coordination Games, Strategic Uncertainty, and Coordination Failure," American Economic Review, American Economic Association, vol. 80(1), pages 234-248, March.
    9. Ben Greiner, 2015. "Subject pool recruitment procedures: organizing experiments with ORSEE," Journal of the Economic Science Association, Springer;Economic Science Association, vol. 1(1), pages 114-125, July.
    10. Tore Ellingsen & Magnus Johannesson, 2004. "Promises, Threats and Fairness," Economic Journal, Royal Economic Society, vol. 114(495), pages 397-420, April.
    11. Cooper, Russell, et al, 1990. "Selection Criteria in Coordination Games: Some Experimental Results," American Economic Review, American Economic Association, vol. 80(1), pages 218-233, March.
    12. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107016064.
    13. 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.
    14. 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.
    15. Jörgen W. Weibull, 2004. "Testing Game Theory," Palgrave Macmillan Books, in: Steffen Huck (ed.), Advances in Understanding Strategic Behaviour, chapter 6, pages 85-104, Palgrave Macmillan.
    16. Uri Gneezy, 2005. "Deception: The Role of Consequences," American Economic Review, American Economic Association, vol. 95(1), pages 384-394, March.
    17. 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.
    18. Lundquist, Tobias & Ellingsen, Tore & Gribbe, Erik & Johannesson, Magnus, 2009. "The aversion to lying," Journal of Economic Behavior & Organization, Elsevier, vol. 70(1-2), pages 81-92, May.
    19. Russell Cooper & Douglas V. DeJong & Robert Forsythe & Thomas W. Ross, 1992. "Communication in Coordination Games," The Quarterly Journal of Economics, Oxford University Press, vol. 107(2), pages 739-771.
    20. Nicolas Jacquemet & Alexander James & Stéphane Luchini & Jason F. Shogren, 2017. "Referenda Under Oath," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 67(3), pages 479-504, July.
    21. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107638105.
    22. Farrell, Joseph, 1988. "Communication, coordination and Nash equilibrium," Economics Letters, Elsevier, vol. 27(3), pages 209-214.
    23. Rajna Gibson & Carmen Tanner & Alexander F. Wagner, 2013. "Preferences for Truthfulness: Heterogeneity among and within Individuals," American Economic Review, American Economic Association, vol. 103(1), pages 532-548, February.
    24. Jacquemet Nicolas & Zylbersztejn Adam, 2013. "Learning, Words and Actions: Experimental Evidence on Coordination-Improving Information," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 13(1), pages 1-33, July.
    25. Crawford, Vincent, 1998. "A Survey of Experiments on Communication via Cheap Talk," Journal of Economic Theory, Elsevier, vol. 78(2), pages 286-298, February.
    26. Matthias Sutter, 2009. "Deception Through Telling the Truth?! Experimental Evidence From Individuals and Teams," Economic Journal, Royal Economic Society, vol. 119(534), pages 47-60, January.
    27. Tore Ellingsen & Robert Östling, 2010. "When Does Communication Improve Coordination?," American Economic Review, American Economic Association, vol. 100(4), pages 1695-1724, September.
    28. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107016057.
    29. Bochet, Olivier & Putterman, Louis, 2009. "Not just babble: Opening the black box of communication in a voluntary contribution experiment," European Economic Review, Elsevier, vol. 53(3), pages 309-326, April.
    30. Battalio, Raymond & Samuelson, Larry & Van Huyck, John, 2001. "Optimization Incentives and Coordination Failure in Laboratory Stag Hunt Games," Econometrica, Econometric Society, vol. 69(3), pages 749-764, May.
    31. Daigle, J.N. & Seidmann & A. & Pimentel, J.R, 1988. "Communications For Manufacturing: An Overview," Papers 88-02, Rochester, Business - Center for Manufacturing and Operations Management.
    32. Gary Charness & Martin Dufwenberg, 2006. "Promises and Partnership," Econometrica, Econometric Society, vol. 74(6), pages 1579-1601, November.
    33. Ulrich Kamecke, 1997. "note: Rotations: Matching Schemes that Efficiently Preserve the Best Reply Structure of a One Shot Game," International Journal of Game Theory, Springer;Game Theory Society, vol. 26(3), pages 409-417.
    34. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107674165.
    35. Miettinen, Topi, 2013. "Promises and conventions – An approach to pre-play agreements," Games and Economic Behavior, Elsevier, vol. 80(C), pages 68-84.
    36. López-Pérez, Raúl, 2012. "The power of words: A model of honesty and fairness," Journal of Economic Psychology, Elsevier, vol. 33(3), pages 642-658.
    37. Jacob K. Goeree & Charles A. Holt, 2001. "Ten Little Treasures of Game Theory and Ten Intuitive Contradictions," American Economic Review, American Economic Association, vol. 91(5), pages 1402-1422, December.
    38. Sekhon, Jasjeet S., 2011. "Multivariate and Propensity Score Matching Software with Automated Balance Optimization: The Matching package for R," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 42(i07).
    39. Christoph Vanberg, 2008. "Why Do People Keep Their Promises? An Experimental Test of Two Explanations -super-1," Econometrica, Econometric Society, vol. 76(6), pages 1467-1480, November.
    40. Joseph Farrell & Matthew Rabin, 1996. "Cheap Talk," Journal of Economic Perspectives, American Economic Association, vol. 10(3), pages 103-118, Summer.
    41. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107627314.
    42. John Duffy & Nick Feltovich, 2006. "Words, Deeds, and Lies: Strategic Behaviour in Games with Multiple Signals," Review of Economic Studies, Oxford University Press, vol. 73(3), pages 669-688.
    43. Cooper, David J. & Van Huyck, John B., 2003. "Evidence on the equivalence of the strategic and extensive form representation of games," Journal of Economic Theory, Elsevier, vol. 110(2), pages 290-308, June.
    44. Acemoglu,Daron & Arellano,Manuel & Dekel,Eddie (ed.), 2013. "Advances in Economics and Econometrics," Cambridge Books, Cambridge University Press, number 9781107016040.
    45. Rosenthal, Robert W., 1981. "Games of perfect information, predatory pricing and the chain-store paradox," Journal of Economic Theory, Elsevier, vol. 25(1), pages 92-100, August.
    46. Beard, T Randolph & Beil, Richard O, Jr & Mataga, Yoshiharu, 2001. "Reliant Behavior in the United States and Japan," Economic Inquiry, Western Economic Association International, vol. 39(2), pages 270-279, April.
    47. Greiner, Ben, 2004. "An Online Recruitment System for Economic Experiments," MPRA Paper 13513, University Library of Munich, Germany.
    48. T. Randolph Beard & Richard O. Beil, 1994. "Do People Rely on the Self-Interested Maximization of Others? An Experimental Test," Management Science, INFORMS, vol. 40(2), pages 252-262, February.
    49. 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.
    50. Gregory M. Parkhurst & Jason F. Shogren & Chris Bastian, 2004. "Repetition, Communication, and Coordination Failure," Experimental Economics, Springer;Economic Science Association, vol. 7(2), pages 141-152, June.
    51. Abadie A., 2002. "Bootstrap Tests for Distributional Treatment Effects in Instrumental Variable Models," Journal of the American Statistical Association, American Statistical Association, vol. 97, pages 284-292, March.
    52. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-1451, November.
    53. Duffy, John & Feltovich, Nick, 2002. "Do Actions Speak Louder Than Words? An Experimental Comparison of Observation and Cheap Talk," Games and Economic Behavior, Elsevier, vol. 39(1), pages 1-27, April.
    54. John B. Van Huyck & Raymond C. Battalio & Richard O. Beil, 1991. "Strategic Uncertainty, Equilibrium Selection, and Coordination Failure in Average Opinion Games," The Quarterly Journal of Economics, Oxford University Press, vol. 106(3), pages 885-910.
    55. Kartik, Navin & Ottaviani, Marco & Squintani, Francesco, 2007. "Credulity, lies, and costly talk," Journal of Economic Theory, Elsevier, vol. 134(1), pages 93-116, May.
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    Cited by:

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    2. Attallah, May & Abildtrup, Jens & Stenger, Anne, 2022. "Non-monetary incentives for sustainable biomass harvest: An experimental approach," Resource and Energy Economics, Elsevier, vol. 69(C).
    3. Nicolas Jacquemet & Alexander James & Stéphane Luchini & Jason F. Shogren, 2017. "Referenda Under Oath," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 67(3), pages 479-504, July.
    4. Vaz, João & Shogren, Jason, 2023. "Cooperation under oath: A case for context-dependent preferences," Economics Letters, Elsevier, vol. 229(C).
    5. Nicolas Jacquemet & Stéphane Luchini & Julie Rosaz & Jason F. Shogren, 2019. "Truth Telling Under Oath," Management Science, INFORMS, vol. 65(1), pages 426-438, January.
    6. Samuel Ferey & Yannick Gabuthy & Nicolas Jacquemet, 2013. "L'apport de l'économie expérimentale dans l'élaboration des politiques publiques," Revue française d'économie, Presses de Sciences-Po, vol. 0(2), pages 155-194.
    7. Fluet, Claude & Galbiati, Rpbertp, 2016. "Lois et normes : les enseignements de l'économie comportementale," L'Actualité Economique, Société Canadienne de Science Economique, vol. 92(1-2), pages 191-215, Mars-Juin.
    8. Ann-Kathrin Koessler & Lionel Page & Uwe Dulleck, 2021. "Public cooperation statements," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 16(4), pages 747-767, October.
    9. Gruener, Sven, 2018. "Sample size calculations in economic RCTs: following clinical studies?," SocArXiv 43zbg, Center for Open Science.
    10. Sorravich Kingsuwankul & Chloe Tergiman & Marie Claire Villeval, 2023. "Why do oaths work? Image concerns and credibility in promise keeping," Working Papers hal-04209489, HAL.
    11. Yan Chen & Catherine Eckel, 2018. "Introduction to the Symposium in Experimental Economics in memory of John Van Huyck," Experimental Economics, Springer;Economic Science Association, vol. 21(3), pages 481-486, September.
    12. Nicolas Jacquemet & Alexander James & Stéphane Luchini & James Murphy & Jason F. Shogren, 2019. "Lying and Shirking Under Oath," Working Papers 19-19, Chapman University, Economic Science Institute.
      • Nicolas Jacquemet & Alexander James & Stéphane Luchini & James J. Murphy & Jason F. Shogren, 2019. "Lying and Shirking Under Oath," Working Papers 2019-02, University of Alaska Anchorage, Department of Economics.
    13. Brent J. Davis & Tarek Jaber‐Lopez, 2023. "Do voluntary commitment mechanisms improve welfare? The effect of mandatory and voluntary oaths in a social dilemma," Bulletin of Economic Research, Wiley Blackwell, vol. 75(2), pages 525-540, April.
    14. Niu, Xiaofei & Li, Jianbiao, 2020. "Incentivizing organ donation by swearing an oath: The role of signature and ritual," EconStor Preprints 203243, ZBW - Leibniz Information Centre for Economics, revised 2020.
    15. Samuel Ferey & Yannick Gabuthy & Nicolas Jacquemet, 2013. "L'apport de l'économie expérimentale dans l'élaboration des politiques publiques," PSE-Ecole d'économie de Paris (Postprint) halshs-00879205, HAL.
    16. Grüner Sven, 2020. "Sample Size Calculation in Economic Experiments," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 240(6), pages 791-823, December.
    17. J. Jobu Babin & Haritima S. Chauhan, 2023. "Show no quarter: combating plausible lies with ex-ante honesty oaths," Journal of the Economic Science Association, Springer;Economic Science Association, vol. 9(1), pages 66-76, June.
    18. Koessler, Ann-Kathrin & Page, Lionel & Dulleck, Uwe, 2015. "Promoting pro-social behavior with public statements of good intent," MPRA Paper 80072, University Library of Munich, Germany, revised 24 May 2017.
    19. Tobias Beck, 2020. "Lying and Mistrust in the Continuous Deception Game," MAGKS Papers on Economics 202030, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    20. Leah H. Palm-Forster & Paul J. Ferraro & Nicholas Janusch & Christian A. Vossler & Kent D. Messer, 2019. "Behavioral and Experimental Agri-Environmental Research: Methodological Challenges, Literature Gaps, and Recommendations," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 73(3), pages 719-742, July.
    21. Beck, Tobias, 2021. "How the honesty oath works: Quick, intuitive truth telling under oath," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 94(C).

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    More about this item

    Keywords

    Coordination game; Cheap talk communication; Oath;
    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

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