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Stock Market Efficiency and Economic Efficiency: Is There a Connection?

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Author Info
James Dow
Gary Gorton

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Abstract

In a capitalist economy prices serve to equilibrate supply and demand for goods and services, continually changing to reallocate resources to their most efficient uses. However, secondary stock market prices, often viewed as the most 'informationally efficient' prices in the economy, have no direct role in the allocation of equity capital since managers have discretion in determining the level of investment. What is the link between stock price informational efficiency and economic efficiency? We present a model of the stock market in which: (i) managers have discretion in making investments and must be given the right incentives; and (ii) stock market traders may have important information that managers do not have about the value of prospective investment opportunities. In equilibrium, information in stock prices will guide investment decisions because managers will be compensated based on informative stock prices in the future. The stock market indirectly guides investment by transferring two kinds of information: information about investment opportunities and information about managers' past decisions. The fact that stock prices only have an indirect role suggests that the stock market may not be a necessary institution for the efficient allocation of equity. We emphasize this by providing an example of a banking system that performs as well.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 5233.

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Date of creation: Aug 1995
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Handle: RePEc:nbr:nberwo:5233

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Find related papers by JEL classification:
G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies
G30 - Financial Economics - - Corporate Finance and Governance - - - General

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.:

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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. James Dow & Itay Goldstein & Alexander Guembel, 2005. "Commitment to Overinvest and Price Informativeness," OFRC Working Papers Series 2005fe18, Oxford Financial Research Centre. [Downloadable!]
  2. Alexander Gümbel, 2000. "Myopic Traders, Efficiency and Taxation," OFRC Working Papers Series 2000fe05, Oxford Financial Research Centre. [Downloadable!]
  3. Franks, Julian R & Mayer, Colin, 2001. "Ownership and Control of German Corporations," CEPR Discussion Papers 2898, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
  4. Guglielmo Maria Caporale, & Peter G. A Howells, & Alaa M. Soliman,, 2003. "Endogenous growth and Stock Market Development," Discussion Papers 0302, University of the West of England, Department of Economics. [Downloadable!]
  5. Foucault, Thierry & Gehrig, Thomas, 2006. "Stock Price Informativeness, Cross-Listings and Investment Decisions," CEPR Discussion Papers 5722, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
  6. Narjess Boubakri & Jean-Claude Cosset & Omrance Guedhami, 2001. "Liberalization, Corporate Governance, and the Performance of Newly Privatized Firms," William Davidson Institute Working Papers Series 419, William Davidson Institute at the University of Michigan Stephen M. Ross Business School. [Downloadable!]
  7. Christopher Polk & Paola Sapienza, 2004. "The Real Effects of Investor Sentiment," NBER Working Papers 10563, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  8. Murillo Campello & John Graham, 2007. "Do Stock Prices Influence Corporate Decisions? Evidence from the Technology Bubble," NBER Working Papers 13640, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  9. Jan Hanousek & Nauro F. Campos & Randall K. Filer, 2001. "Do Stock Markets Promote Economic Growth?," Finance 0012006, EconWPA. [Downloadable!]
    Other versions:
  10. Alexander Gümbel, 2005. "Should short-term speculators be taxed, or subsidised?," Annals of Finance, Springer, vol. 1(3), pages 327-348, 08. [Downloadable!] (restricted)
  11. Martin Dierker, 2006. "Endogenous Information Acquisition with Cournot Competition," Annals of Finance, Springer, vol. 2(4), pages 369-395, October. [Downloadable!] (restricted)
  12. Philip Bond & Itay Goldstein & Edward S. Prescott, 2006. "Market-based regulation and the informational content of prices," Working Paper 06-12, Federal Reserve Bank of Richmond. [Downloadable!]
  13. Ljungqvist, Alexander & Boehmer, Ekkehart, 2004. "On the decision to go public : Evidence from privately-held firms," Discussion Paper Series 1: Economic Studies 2004,16, Deutsche Bundesbank, Research Centre. [Downloadable!]
  14. Antonio Bernardo & Kenneth Judd, 1997. "Efficiency of Asset Markets with Asymmetric Information," University of California at Los Angeles, Anderson Graduate School of Management 1130, Anderson Graduate School of Management, UCLA. [Downloadable!]
  15. Chirinko, Robert S. & Schaller, Huntley, 2003. "A Revealed Preference Approach. To Understanding Corporate Governance Problems: Evidence From Canada," Economics Series 135, Institute for Advanced Studies. [Downloadable!]
    Other versions:
  16. Basak, Suleyman & Pavlova, Anna, 2003. "Monopoly Power And The Firm'S Valuation: A Dynamic Analysis Of Short Versus Long-Term Policies," Working papers 4234-01, Massachusetts Institute of Technology (MIT), Sloan School of Management. [Downloadable!]
  17. Ferreira, Daniel & Ferreira, Miguel A. & Raposo, Clara C., 2008. "Board Structure and Price Informativeness," CEI Working Paper Series 2008-4, Center for Economic Institutions, Institute of Economic Research, Hitotsubashi University. [Downloadable!]
  18. Franklin Allen & Richard Herring, 2001. "Banking Regulation versus Securities Market Regulation," Center for Financial Institutions Working Papers 01-29, Wharton School Center for Financial Institutions, University of Pennsylvania. [Downloadable!]
  19. George-Marios Angeletos & Guido Lorenzoni & Alessandro Pavan, 2007. "Wall Street and Silicon Valley: A Delicate Interaction," NBER Working Papers 13475, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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