IDEAS home Printed from https://ideas.repec.org/p/exe/wpaper/9608.html
   My bibliography  Save this paper

Irrational Analysts' Expectations as a Cause of Excess Volatility in Stock Prices

Author

Listed:
  • Bulkley, George
  • Harris, Richard

Abstract

This paper investigates whether excess stock price volatility may be due in part to a failure of the market to form rational expectations. Using data on analysts' expectations of long run earnings growth for individual companies, we report a number of interelated results which lend support to this hypothesis. First we show that there is no statistically significant relationship between analysts' long run forecasts and subsequent earnings growth, suggesting that analysts' earnings expectations are excessively dispersed. Secondly, we provide evidence that analysts' expectations are reflected in market prices. These two results together imply that the cross-section of stock prices will also be excessively dispersed, so that stocks with low earnings expectations are underpriced and stocks with high earnings expectations are overpriced. As analysts' forecasts errors become apparent, stock prices should adjust accordingly and so excess returns should accrue. We demonstrate that analysts' forecasts are indeed negatively correlated with subsequent excess returns. All hypothesis testing uses panel regression techniques, and to circumvent the problem of cross-sectional dependence in the data we use a generalised method of moments estimator of the parameter covariance matrix.

Suggested Citation

  • Bulkley, George & Harris, Richard, 1996. "Irrational Analysts' Expectations as a Cause of Excess Volatility in Stock Prices," Discussion Papers 9608, Exeter University, Department of Economics.
  • Handle: RePEc:exe:wpaper:9608
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a search for a similarly titled item that would be available.

    Other versions of this item:

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. repec:nax:conyad:v:62:y:2017:i:4:p:1345-1360 is not listed on IDEAS
    2. Gordon Burt, 1997. "Cultural Convergence in Historical Cultural Space-Time," Journal of Cultural Economics, Springer;The Association for Cultural Economics International, vol. 21(4), pages 291-305, December.
    3. Andreas Fuster & Benjamin Hebert & David Laibson, 2012. "Natural Expectations, Macroeconomic Dynamics, and Asset Pricing," NBER Macroeconomics Annual, University of Chicago Press, vol. 26(1), pages 1-48.
    4. George Buckley & Richard W P Holt, 1999. "Forecasting Cross-Section Stock Returns using Theoretical Prices Estimated from an Econometric Model," ESE Discussion Papers 47, Edinburgh School of Economics, University of Edinburgh.
    5. CharlesKaYui Leung & Nan-Kuang Chen, 2010. "Stock Price Volatility, Negative Autocorrelation And The Consumption-Wealth Ratio: The Case Of Constant Fundamentals," Pacific Economic Review, Wiley Blackwell, vol. 15(2), pages 224-245, May.
    6. Fuster, Andreas & Hebert, Benjamin Michael & Laibson, David I., 2012. "Investment Dynamics with Natural Expectations," Scholarly Articles 10139283, Harvard University Department of Economics.
    7. repec:nax:conyad:v:62:y:2017:i:4:p:1361-1376 is not listed on IDEAS
    8. Gurjeet Dhesi & Marcel Ausloos, 2016. "Modelling and Measuring the Irrational behaviour of Agents in Financial Markets: Discovering the Psychological Soliton," Papers 1601.01553, arXiv.org.
    9. Walid Saleh, 2014. "Explaining the Cross-Sectional Patterns of UK Expected Stock Returns: The Effect of Intangibles," International Journal of Financial Research, International Journal of Financial Research, Sciedu Press, vol. 5(2), pages 160-170, April.
    10. Martin Wallmeier, 2005. "Analysts’ Earnings Forecasts for DAX100 Firms During the Stock Market Boom of the 1990s," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 19(2), pages 131-151, August.
    11. Green, Christopher J. & Maggioni, Paolo & Murinde, Victor, 2000. "Regulatory lessons for emerging stock markets from a century of evidence on transactions costs and share price volatility in the London Stock Exchange," Journal of Banking & Finance, Elsevier, vol. 24(4), pages 577-601, April.

    More about this item

    Keywords

    Volatility; Earnings expectations; Panel data;

    JEL classification:

    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

    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:exe:wpaper:9608. 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: (Carlos Cortinhas). General contact details of provider: http://edirc.repec.org/data/deexeuk.html .

    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.

    We have no references for this item. You can help adding them by using 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.