IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this article or follow this journal

Public and private learning from prices, strategic substitutability and complementarity, and equilibrium multiplicity

  • Manzano, Carolina
  • Vives, Xavier

We study a general static noisy rational expectations model where investors have private information about asset payoffs, with common and private components, and about their own exposure to an aggregate risk factor, and derive conditions for existence and uniqueness (or multiplicity) of equilibria. We find that a main driver of the characterization of equilibria is whether the actions of investors are strategic substitutes or complements. This latter property in turn is driven by the strength of a private learning channel from prices, arising from the multidimensional sources of asymmetric information, in relation to the usual public learning channel. When the private learning channel is strong (weak) in relation to the public we have strong (weak) strategic complementarity in actions and potentially multiple (unique) equilibria. The results enable a precise characterization of whether information acquisition decisions are strategic substitutes or complements. We find that the strategic substitutability in information acquisition result obtained in Grossman and Stiglitz (1980) is robust.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www.sciencedirect.com/science/article/pii/S0304406811000164
Download Restriction: Full text for ScienceDirect subscribers only

As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

Article provided by Elsevier in its journal Journal of Mathematical Economics.

Volume (Year): 47 (2011)
Issue (Month): 3 ()
Pages: 346-369

as
in new window

Handle: RePEc:eee:mateco:v:47:y:2011:i:3:p:346-369
Contact details of provider: Web page: http://www.elsevier.com/locate/jmateco

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Goldstein, Itay & Ozdenoren, Emre & Yuan, Kathy, 2010. "Learning and Complementarities: Implications for Speculative Attacks," CEPR Discussion Papers 7651, C.E.P.R. Discussion Papers.
  2. Christian Hellwig & Laura Veldkamp, 2006. "Knowing what others Know: Coordination motives in information acquisition," 2006 Meeting Papers 361, Society for Economic Dynamics.
  3. Gadi Barlevy & Pietro Veronesi, . "Information Acquisition in Financial Markets," CRSP working papers 360, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
  4. Danthine, Jean-Pierre & Moresi, Serge, 1993. "Volatility, information and noise trading," European Economic Review, Elsevier, vol. 37(5), pages 961-982, June.
  5. Luis Angel Medrano & Xavier Vives, 2004. "Regulating Insider Trading When Investment Matters," Review of Finance, Springer, vol. 8(2), pages 199-277.
  6. Laura Veldkamp, 2004. "Media Frenzies in Markets for Financial Information," Econometric Society 2004 North American Winter Meetings 4, Econometric Society.
  7. Wang, Jiang, 1959- & He, Hua., 1994. "Differential information and dynamic behavior of stock trading volume," Working papers 3731-94., Massachusetts Institute of Technology (MIT), Sloan School of Management.
  8. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
  9. Christophe Chamley, 2008. "On "Acquisition of Information in Financial Markets"," Review of Economic Studies, Oxford University Press, vol. 75(4), pages 1081-1084.
  10. Federico Echenique, 2000. "Comparative Statics by Adaptive Dynamics and The Correspondence Principle," GE, Growth, Math methods 9912002, EconWPA.
  11. Hirshleifer, David & Subrahmanyam, Avanidhar & Titman, Sheridan, 1994. " Security Analysis and Trading Patterns When Some Investors Receive Information before Others," Journal of Finance, American Finance Association, vol. 49(5), pages 1665-98, December.
  12. Chamley, Christophe, 2007. "Complementarities in information acquisition with short-term trades," Theoretical Economics, Econometric Society, vol. 2(4), December.
  13. Manuel Amador & Pierre-Olivier Weill, 2008. "Learning from Prices: Public Communication and Welfare," NBER Working Papers 14255, National Bureau of Economic Research, Inc.
  14. Gadi Barlevy & Pietro Veronesi, 2007. "Information acquisition in financial markets: a correction," Working Paper Series WP-07-06, Federal Reserve Bank of Chicago.
  15. Vives, Xavier, 1993. "How Fast Do Rational Agents Learn?," Review of Economic Studies, Wiley Blackwell, vol. 60(2), pages 329-47, April.
  16. repec:ebl:ecbull:v:30:y:2010:i:1:p:383-391 is not listed on IDEAS
  17. Vives, X., 1993. "Short-Term Investment and the Informational Efficiency of the Market," UFAE and IAE Working Papers 207.93, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
  18. Vives, X., 1988. "Nash Equilibrium With Strategic Complementarities," UFAE and IAE Working Papers 107-88, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
  19. Laura Veldkamp, 2004. "Information Markets and the Comovement of Asset Prices," Working Papers 04-18, New York University, Leonard N. Stern School of Business, Department of Economics.
  20. Blume, L. E. & Bray, M. M. & Easley, D., 1982. "Introduction to the stability of rational expectations equilibrium," Journal of Economic Theory, Elsevier, vol. 26(2), pages 313-317, April.
  21. Itay Goldstein & Emre Ozdenoren & Kathy Yuan, 2011. "Learning and Complementarities in Speculative Attacks," Review of Economic Studies, Oxford University Press, vol. 78(1), pages 263-292.
  22. McCafferty, Stephen & Driskill, Robert, 1980. "Problems of Existence and Uniqueness in Nonlinear Rational Expectations Models," Econometrica, Econometric Society, vol. 48(5), pages 1313-17, July.
  23. Duffie Darrell & Rahi Rohit, 1995. "Financial Market Innovation and Security Design: An Introduction," Journal of Economic Theory, Elsevier, vol. 65(1), pages 1-42, February.
  24. Guesnerie, R., 1999. "Anchoring Economic Predictions in Common Knowledge," DELTA Working Papers 1999-06, DELTA (Ecole normale supérieure).
  25. Admati, Anat R, 1985. "A Noisy Rational Expectations Equilibrium for Multi-asset Securities Markets," Econometrica, Econometric Society, vol. 53(3), pages 629-57, May.
  26. Gerard Gennotte and Hayne Leland., 1989. "Market Liquidity, Hedging and Crashes," Research Program in Finance Working Papers RPF-192, University of California at Berkeley.
  27. Diamond, Douglas W. & Verrecchia, Robert E., 1981. "Information aggregation in a noisy rational expectations economy," Journal of Financial Economics, Elsevier, vol. 9(3), pages 221-235, September.
  28. Jayant Vivek Ganguli & Liyan Yang, 2009. "Complementarities, Multiplicity, and Supply Information," Journal of the European Economic Association, MIT Press, vol. 7(1), pages 90-115, 03.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:eee:mateco:v:47:y:2011:i:3:p:346-369. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei)

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 references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link 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 profile, as there may be some citations waiting for confirmation.

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

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.