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Media Frenzies in Markets for Financial Information

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Author Info
Laura L. Veldkamp

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Abstract

Emerging equity markets witness occasional surges in prices (frenzies) and crossmarket price dispersion (herds), accompanied by abundant media coverage. An information market complementarity can explain these anomalies. Because information has high fixed costs, high volume makes it inexpensive. Low prices induce investors to buy information that others buy. Given two identical assets, investors learn about one; abundant information reduces its payoff risk and raises its price. Transitions between low-information/low-asset-price and high-information/highasset- price equilibria resemble frenzies. Equity data and new panel data on news coverage support the model's predictions: Asset market movements generate news and news raises prices and price dispersion. (JEL D82, G12, G14)

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Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 96 (2006)
Issue (Month): 3 (June)
Pages: 577-601
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Handle: RePEc:aea:aecrev:v:96:y:2006:i:3:p:577-601

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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.:
  1. Van Nieuwerburgh, Stijn & Veldkamp, Laura, 2006. "Learning asymmetries in real business cycles," Journal of Monetary Economics, Elsevier, vol. 53(4), pages 753-772, May. [Downloadable!] (restricted)
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  2. Mitchell, Mark L & Mulherin, J Harold, 1994. " The Impact of Public Information on the Stock Market," Journal of Finance, American Finance Association, vol. 49(3), pages 923-50, July. [Downloadable!] (restricted)
  3. Welch, Ivo, 1992. " Sequential Sales, Learning, and Cascades," Journal of Finance, American Finance Association, vol. 47(2), pages 695-732, June. [Downloadable!] (restricted)
  4. Kenneth A. Froot & David S. Scharfstein & Jeremy C. Stein, 1990. "Herd on the Street: Informational Inefficiencies in a Market with Short-Term Speculation," NBER Working Papers 3250, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  5. Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October. [Downloadable!] (restricted)
  6. David Easley & Soeren Hvidkjaer & Maureen O'Hara, 2002. "Is Information Risk a Determinant of Asset Returns?," Journal of Finance, American Finance Association, vol. 57(5), pages 2185-2221, October. [Downloadable!] (restricted)
  7. Mankiw, N Gregory & Romer, David & Shapiro, Matthew D, 1991. "Stock Market Forecastability and Volatility: A Statistical Appraisal," Review of Economic Studies, Blackwell Publishing, vol. 58(3), pages 455-77, May. [Downloadable!] (restricted)
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  8. Avery, Christopher & Zemsky, Peter, 1998. "Multidimensional Uncertainty and Herd Behavior in Financial Markets," American Economic Review, American Economic Association, vol. 88(4), pages 724-48, September. [Downloadable!] (restricted)
  9. Perloff, Jeffrey M & Salop, Steven C, 1985. "Equilibrium with Product Differentiation," Review of Economic Studies, Blackwell Publishing, vol. 52(1), pages 107-20, January. [Downloadable!] (restricted)
  10. Sims, Christopher A., 2003. "Implications of rational inattention," Journal of Monetary Economics, Elsevier, vol. 50(3), pages 665-690, April. [Downloadable!] (restricted)
  11. Veldkamp, Laura L., 2005. "Slow boom, sudden crash," Journal of Economic Theory, Elsevier, vol. 124(2), pages 230-257, October. [Downloadable!] (restricted)
  12. Banerjee, Abhijit V, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 797-817, August. [Downloadable!] (restricted)
  13. Admati, Anat R. & Pfleiderer, Paul, 1986. "A monopolistic market for information," Journal of Economic Theory, Elsevier, vol. 39(2), pages 400-438, August. [Downloadable!] (restricted)
  14. Gadi Barlevy & Pietro Veronesi, . "Information Acquisition in Financial Markets," CRSP working papers 484, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
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  15. V. V. Chari & Patrick J. Kehoe, 2003. "Hot Money," Journal of Political Economy, University of Chicago Press, vol. 111(6), pages 1262-1292, December. [Downloadable!] (restricted)
    Other versions:
    • V.V. Chari & Patrick J. Kehoe, 2003. "Hot money," Staff Report 228, Federal Reserve Bank of Minneapolis. [Downloadable!]
    • V. V. Chari & Patrick Kehoe, 1997. "Hot Money," NBER Working Papers 6007, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    • V. V. Chari & Patrick J. Kehoe, 2003. "Hot Money," Levine's Bibliography 506439000000000415, UCLA Department of Economics. [Downloadable!]
  16. Levin, Andrew & Lin, Chien-Fu & James Chu, Chia-Shang, 2002. "Unit root tests in panel data: asymptotic and finite-sample properties," Journal of Econometrics, Elsevier, vol. 108(1), pages 1-24, May. [Downloadable!] (restricted)
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  17. 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.
  18. Vives, Xavier, 1993. "How Fast Do Rational Agents Learn?," Review of Economic Studies, Blackwell Publishing, vol. 60(2), pages 329-47, April. [Downloadable!] (restricted)
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  19. Romer, Paul M, 1990. "Endogenous Technological Change," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages S71-102, October. [Downloadable!] (restricted)
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Full references

Cited by:
(explanations, 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.)

  1. Isaac Ehrlich & William A. Hamlen Jr. & Yong Yin, 2008. "Asset Management, Human Capital, and the Market for Risky Assets," NBER Working Papers 14340, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  2. Yuriy Gorodnichenko, 2008. "Endogenous information, menu costs and inflation persistence," NBER Working Papers 14184, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  3. Vasiliki Skreta & Laura Veldkamp, 2008. "Ratings Shopping and Asset Complexity: A Theory of Ratings Inflation," Working Papers 08-28, New York University, Leonard N. Stern School of Business, Department of Economics. [Downloadable!]
    Other versions:
  4. Laura Veldkamp & Justin Wolfers, 2006. "Aggregate Shocks or Aggregate Information? Costly Information and Business Cycle Comovement," IZA Discussion Papers 2339, Institute for the Study of Labor (IZA). [Downloadable!]
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  5. Hirshleifer, David & Teoh, Siew Hong, 2008. "Thought and Behavior Contagion in Capital Markets," MPRA Paper 9164, University Library of Munich, Germany. [Downloadable!]
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  6. Kelly, Bryan & Ljungqvist, Alexander P, 2009. "Testing Asymmetric-Information Asset Pricing Models," CEPR Discussion Papers 7180, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
  7. Spyros Pagratis, . "Asset pricing, asymmetric information and rating announcements: does benchmarking on ratings matter?," Bank of England working papers 265, Bank of England. [Downloadable!]
  8. Marc-Andreas Muendler, 2005. "Rational Information Choice in Financial Market Equilibrium," University of California at San Diego, Economics Working Paper Series 2005-04, Department of Economics, UC San Diego. [Downloadable!]
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  9. Milo Bianchi & Philippe Jehiel, 2008. "Speculative Bubbles without Stupid Investors," Levine's Bibliography 122247000000002180, UCLA Department of Economics. [Downloadable!]
  10. Mark Bowden & Stuart McDonald, 2008. "The Impact of Interaction and Social Learning on Aggregate Expectations," Computational Economics, Springer, vol. 31(3), pages 289-306, April. [Downloadable!] (restricted)
  11. Boyan Jovanovic & Peter L. Rousseau, 2004. "Interest Rates and Initial Public Offerings," NBER Working Papers 10298, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  12. Elizabeth Demers & Clara Vega, 2008. "Soft information in earnings announcements: news or noise?," International Finance Discussion Papers 951, Board of Governors of the Federal Reserve System (U.S.). [Downloadable!]
  13. 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. [Downloadable!]
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  14. Jordi Mondria, 2006. "Financial Contagion and Attention Allocation," Working Papers tecipa-254, University of Toronto, Department of Economics. [Downloadable!]
    Other versions:
  15. Gadi Barlevy & Pietro Veronesi, 2007. "Information acquisition in financial markets: a correction," Working Paper Series WP-07-06, Federal Reserve Bank of Chicago. [Downloadable!]
  16. Boyan Jovanovic & Peter Rousseau, 2004. "Interest rates and the timing of new production," Economic Perspectives, Federal Reserve Bank of Chicago, issue Q IV, pages 2-11. [Downloadable!]
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