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Competition in Signaling

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  • Vaccari, Federico

Abstract

I study a multi-sender signaling game between an uninformed decision maker and two senders with common private information and conflicting interests. Senders can misreport information at a cost that is tied to the size of the misrepresentation. The main results concern the amount of information that is transmitted in equilibrium and the language used by senders to convey such information. Fully revealing and pure-strategy equilibria exist but are not plausible. I first identify sufficient conditions under which equilibria are essentially unique, robust, and always exist, and then deliver a complete characterization of these equilibria. As an application, I study the informative value of different judicial procedures.

Suggested Citation

  • Vaccari, Federico, 2022. "Competition in Signaling," FEEM Working Papers 329582, Fondazione Eni Enrico Mattei (FEEM).
  • Handle: RePEc:ags:feemwp:329582
    DOI: 10.22004/ag.econ.329582
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    1. Christian Schultz, 1996. "Polarization and Inefficient Policies," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 63(2), pages 331-344.
    2. Helmut Bester & Juri Demuth, 2015. "Signalling Rivalry and Quality Uncertainty in a Duopoly," Journal of Industry, Competition and Trade, Springer, vol. 15(2), pages 135-154, June.
    3. Milgrom, Paul & Roberts, John, 1982. "Limit Pricing and Entry under Incomplete Information: An Equilibrium Analysis," Econometrica, Econometric Society, vol. 50(2), pages 443-459, March.
    4. Marco Battaglini, 2002. "Multiple Referrals and Multidimensional Cheap Talk," Econometrica, Econometric Society, vol. 70(4), pages 1379-1401, July.
    5. Fluet, Claude & Garella, Paolo G., 2002. "Advertising and prices as signals of quality in a regime of price rivalry," International Journal of Industrial Organization, Elsevier, vol. 20(7), pages 907-930, September.
    6. Matthew Gentzkow & Jesse M. Shapiro, 2008. "Competition and Truth in the Market for News," Journal of Economic Perspectives, American Economic Association, vol. 22(2), pages 133-154, Spring.
    7. Kyle Bagwell & Garey Ramey, 1991. "Oligopoly Limit Pricing," RAND Journal of Economics, The RAND Corporation, vol. 22(2), pages 155-172, Summer.
    8. Daughety, Andrew F. & Reinganum, Jennifer F., 2007. "Competition and confidentiality: Signaling quality in a duopoly when there is universal private information," Games and Economic Behavior, Elsevier, vol. 58(1), pages 94-120, January.
    9. Chen, Ying, 2011. "Perturbed communication games with honest senders and naive receivers," Journal of Economic Theory, Elsevier, vol. 146(2), pages 401-424, March.
    10. Callander, Steven & Wilkie, Simon, 2007. "Lies, damned lies, and political campaigns," Games and Economic Behavior, Elsevier, vol. 60(2), pages 262-286, August.
    11. Stergios Skaperdas & Samarth Vaidya, 2012. "Persuasion as a contest," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 51(2), pages 465-486, October.
    12. Milgrom, Paul & Roberts, John, 1986. "Price and Advertising Signals of Product Quality," Journal of Political Economy, University of Chicago Press, vol. 94(4), pages 796-821, August.
    13. Dan Kovenock & Michael R. Baye & Casper G. de Vries, 1996. "The all-pay auction with complete information (*)," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 8(2), pages 291-305.
    14. Hyun Song Shin, 1998. "Adversarial and Inquisitorial Procedures in Arbitration," RAND Journal of Economics, The RAND Corporation, vol. 29(2), pages 378-405, Summer.
    15. Navin Kartik, 2009. "Strategic Communication with Lying Costs," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 76(4), pages 1359-1395.
    16. Mark N. Hertzendorf & Per Baltzer Overgaard, 2001. "Price Competition and Advertising Signals: Signaling by Competing Senders," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 10(4), pages 621-662, December.
    17. Claude Fluet, 2009. "Accuracy Versus Falsification Costs: The Optimal Amount of Evidence under Different Procedures," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 25(1), pages 134-156, May.
    18. Vida, Péter & Honryo, Takakazu, 2021. "Strategic stability of equilibria in multi-sender signaling games," Games and Economic Behavior, Elsevier, vol. 127(C), pages 102-112.
    19. Yaron Yehezkel, 2008. "Signaling Quality in an Oligopoly When Some Consumers Are Informed," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 17(4), pages 937-972, December.
    20. Paul Milgrom & John Roberts, 1986. "Relying on the Information of Interested Parties," RAND Journal of Economics, The RAND Corporation, vol. 17(1), pages 18-32, Spring.
    21. Vijay Krishna & John Morgan, 2001. "A Model of Expertise," The Quarterly Journal of Economics, Oxford University Press, vol. 116(2), pages 747-775.
    22. In-Koo Cho & David M. Kreps, 1987. "Signaling Games and Stable Equilibria," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 102(2), pages 179-221.
    23. Banks, Jeffrey S., 1990. "A model of electoral competition with incomplete information," Journal of Economic Theory, Elsevier, vol. 50(2), pages 309-325, April.
    24. Banks, Jeffrey S & Sobel, Joel, 1987. "Equilibrium Selection in Signaling Games," Econometrica, Econometric Society, vol. 55(3), pages 647-661, May.
    25. Paul R. Milgrom, 1981. "Good News and Bad News: Representation Theorems and Applications," Bell Journal of Economics, The RAND Corporation, vol. 12(2), pages 380-391, Autumn.
    26. Faruk Gul & Wolfgang Pesendorfer, 2012. "The War of Information," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(2), pages 707-734.
      • Gul, Faruk & Pesendorfer, Wolfgang, 2010. "The War of Information," Papers 9-13-2010, Princeton University, Research Program in Political Economy.
    27. Joseph E. Harrington Jr., 1987. "Oligopolistic Entry Deterrence under Incomplete Information," RAND Journal of Economics, The RAND Corporation, vol. 18(2), pages 211-231, Summer.
    28. Kohlberg, Elon & Mertens, Jean-Francois, 1986. "On the Strategic Stability of Equilibria," Econometrica, Econometric Society, vol. 54(5), pages 1003-1037, September.
    29. Ying Chen & Navin Kartik & Joel Sobel, 2008. "Selecting Cheap-Talk Equilibria," Econometrica, Econometric Society, vol. 76(1), pages 117-136, January.
    30. Kartik, Navin & Ottaviani, Marco & Squintani, Francesco, 2007. "Credulity, lies, and costly talk," Journal of Economic Theory, Elsevier, vol. 134(1), pages 93-116, May.
    31. Marco Ottaviani & Francesco Squintani, 2006. "Naive audience and communication bias," International Journal of Game Theory, Springer;Game Theory Society, vol. 35(1), pages 129-150, December.
    32. Honryo, Takakazu, 2018. "Risky shifts as multi-sender signaling," Journal of Economic Theory, Elsevier, vol. 174(C), pages 273-287.
    33. Manelli, Alejandro M, 1996. "Cheap Talk and Sequential Equilibria in Signaling Games," Econometrica, Econometric Society, vol. 64(4), pages 917-942, July.
    34. George J. Mailath, 1989. "Simultaneous Signaling in an Oligopoly Model," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 104(2), pages 417-427.
    35. Michael Spence, 1973. "Job Market Signaling," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 87(3), pages 355-374.
    36. Robert Wilson, 1977. "A Bidding Model of Perfect Competition," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 44(3), pages 511-518.
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    Cited by:

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    More about this item

    Keywords

    Industrial Organization; Institutional and Behavioral Economics;

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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