IDEAS home Printed from https://ideas.repec.org/p/ecl/stabus/1670r.html
   My bibliography  Save this paper

Noisytalk.com: Broadcasting Opinions in a Noisy Environment

Author

Listed:
  • Admati, Anat R.

    (Stanford U)

  • Pfleiderer, Paul C.

Abstract

We analyze a model where an altruistic sender, who may or may not be informed, broadcasts one of a finite set of messages to rational receivers. If broadcasting is costless and the sender is rational, there is an informationally efficient equilibrium, but this equilibrium is not necessarily unique nor symmetric. If the sender is overconfident, he tends to exaggerate, and in equilibrium extreme messages are sent more frequently. While overconfidence reduces informativeness in some cases, it may also eliminate less informative equilibria. We also show that overconfidence can improve informativeness when broadcasting is costly.

Suggested Citation

  • Admati, Anat R. & Pfleiderer, Paul C., 2001. "Noisytalk.com: Broadcasting Opinions in a Noisy Environment," Research Papers 1670r, Stanford University, Graduate School of Business.
    • Handle: RePEc:ecl:stabus:1670r
    as

    Download full text from publisher

    File URL: http://gsbapps.stanford.edu/researchpapers/library/RP1670R.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Terrance Odean., 1996. "Volume, Volatility, Price and Profit When All Trader Are Above Average," Research Program in Finance Working Papers RPF-266, University of California at Berkeley.
    2. Tilman Ehrbeck & Robert Waldmann, 1996. "Why Are Professional Forecasters Biased? Agency versus Behavioral Explanations," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 111(1), pages 21-40.
    3. Prendergast, Canice & Stole, Lars, 1996. "Impetuous Youngsters and Jaded Old-Timers: Acquiring a Reputation for Learning," Journal of Political Economy, University of Chicago Press, vol. 104(6), pages 1105-1134, December.
    4. Thomas Piketty, 2000. "Voting as Communicating," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(1), pages 169-191.
    5. repec:bla:jfinan:v:53:y:1998:i:6:p:1839-1885 is not listed on IDEAS
    6. Joel Sobel, 1985. "A Theory of Credibility," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 52(4), pages 557-573.
    7. Banks, Jeffrey S., 1990. "A model of electoral competition with incomplete information," Journal of Economic Theory, Elsevier, vol. 50(2), pages 309-325, April.
    8. repec:bla:jfinan:v:53:y:1998:i:6:p:1887-1934 is not listed on IDEAS
    9. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-1451, November.
    10. Ottaviani, Marco & Sorensen, Peter Norman, 2006. "Professional advice," Journal of Economic Theory, Elsevier, vol. 126(1), pages 120-142, January.
    Full references (including those not matched with items on IDEAS)

    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. Schottmüller, Christoph, 2019. "Too good to be truthful: Why competent advisers are fired," Journal of Economic Theory, Elsevier, vol. 181(C), pages 333-360.
    2. Ottaviani, Marco & Sorensen, Peter Norman, 2006. "The strategy of professional forecasting," Journal of Financial Economics, Elsevier, vol. 81(2), pages 441-466, August.
    3. Marinovic, Iván & Ottaviani, Marco & Sorensen, Peter, 2013. "Forecasters’ Objectives and Strategies," Handbook of Economic Forecasting, in: G. Elliott & C. Granger & A. Timmermann (ed.), Handbook of Economic Forecasting, edition 1, volume 2, chapter 0, pages 690-720, Elsevier.
    4. Dasgupta, Amil & Sarafidis, Yianis, 2009. "Managers as administrators: Reputation and incentives," Journal of Economic Behavior & Organization, Elsevier, vol. 70(1-2), pages 155-163, May.
    5. Ralph Boleslavsky & Tracy R. Lewis, 2011. "Advocacy and Dynamic Delegation," Working Papers 2011-7, University of Miami, Department of Economics.
    6. Marco Ottaviani & Peter Norman Sorensen, 2002. "Professional Advice: The Theory of Reputational Cheap Talk," Discussion Papers 02-05, University of Copenhagen. Department of Economics.
    7. Aleksei Smirnov & Egor Starkov, 2019. "Timing of predictions in dynamic cheap talk: experts vs. quacks," ECON - Working Papers 334, Department of Economics - University of Zurich.
    8. Golosov, Mikhail & Skreta, Vasiliki & Tsyvinski, Aleh & Wilson, Andrea, 2014. "Dynamic strategic information transmission," Journal of Economic Theory, Elsevier, vol. 151(C), pages 304-341.
    9. Liu, Yaozhou Franklin & Sanyal, Amal, 2012. "When second opinions hurt: A model of expert advice under career concerns," Journal of Economic Behavior & Organization, Elsevier, vol. 84(1), pages 1-16.
    10. Bizer, Kilian & Meub, Lukas & Proeger, Till & Spiwoks, Markus, 2014. "Strategic coordination in forecasting: An experimental study," University of Göttingen Working Papers in Economics 195, University of Goettingen, Department of Economics.
    11. Sibert, Anne & Sabourian, Hamid, 2009. "Banker Compensation and Confirmation Bias," CEPR Discussion Papers 7263, C.E.P.R. Discussion Papers.
    12. Andrea Prat, 2005. "The Wrong Kind of Transparency," American Economic Review, American Economic Association, vol. 95(3), pages 862-877, June.
    13. Levy, Gilat, 2000. "Strategic consultation in the presence of career concerns," LSE Research Online Documents on Economics 3627, London School of Economics and Political Science, LSE Library.
    14. Grunewald, Andreas & Kräkel, Matthias, 2017. "Fake News," IZA Discussion Papers 11207, Institute of Labor Economics (IZA).
    15. Hidir, Sinem, 2017. "Information Acquisition and Credibility in Cheap Talk," CRETA Online Discussion Paper Series 36, Centre for Research in Economic Theory and its Applications CRETA.
    16. Friesen, Geoffrey & Weller, Paul A., 2006. "Quantifying cognitive biases in analyst earnings forecasts," Journal of Financial Markets, Elsevier, vol. 9(4), pages 333-365, November.
    17. Olszewski, Wojciech, 2004. "Informal communication," Journal of Economic Theory, Elsevier, vol. 117(2), pages 180-200, August.
    18. Irene Valsecchi, 2013. "Non-uniqueness of equilibrium action profiles with equal size in one-shot cheap-talk games," Theory and Decision, Springer, vol. 74(1), pages 31-53, January.
    19. Sylvain Bourjade & Bruno Jullien, 2011. "The roles of reputation and transparency on the behavior of biased experts," RAND Journal of Economics, RAND Corporation, vol. 42(3), pages 575-594, September.
    20. Di Maggio, Marco, 2009. "Accountability and Cheap Talk," MPRA Paper 18652, University Library of Munich, Germany.

    More about this item

    JEL classification:

    • D00 - Microeconomics - - General - - - General

    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:ecl:stabus:1670r. 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: the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/gsstaus.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.