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Differential Information and Security Market Equilibrium

Published online by Cambridge University Press:  06 April 2009

Christopher B. Barry  and
Stephen J. Brown
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Abstract

We propose a simple model of equilibrium asset pricing in which there are differences in the amounts of information available for developing inferences about the returns parameters of alternative securities. In contrast with earlier work, we show that parameter uncertainty, or estimation risk, can have an effect upon market equilibrium. Under reasonable conditions, securities for which there is relatively little information are shown to have relatively higher systematic risk when that risk is properly measured, ceteris paribus. The initially very limited model is shown to be robust with respect to relaxation of a number of its principal assumptions. We provide theoretical support for the empirical examination of at least three proxies for relative information: period of listing, number of security returns observations available, and divergence of analyst opinion.

Type
Research Article
Information
Journal of Financial and Quantitative Analysis , Volume 20 , Issue 4 , December 1985 , pp. 407 - 422
Copyright
Copyright © School of Business Administration, University of Washington 1985

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References

[1]Arbel, Avner, and Streibel, Paul. “The Neglected and Small Firm Effects.” The Financial Review, Vol. 17 (11 1982), pp. 201–218.CrossRefGoogle Scholar
[2]Banz, Rolf W. “The Relationship between Return and Market Value of Common Stocks.” Journal of Financial Economics, Vol. 9 (03 1981), pp. 3–18.CrossRefGoogle Scholar
[3]Barry, Christopher B. A Bayesian Approach to Portfolio Analysis. Unpublished DBA dissertation, Indiana University (1973).Google Scholar
[4]Barry, Christopher B.“Effects of Uncertain and Nonstationary Parameters upon Capital Market Equilibrium Conditions.” Journal of Financial and Quantitative Analysis, Vol. 13 (09 1978), pp. 419–433.CrossRefGoogle Scholar
[5]Barry, Christopher B., and Brown, Stephen J.. “Differential Information and the Small Firm Effect.” Journal of Financial Economics, Vol. 13 (07 1984), pp. 283–294.CrossRefGoogle Scholar
[6]Barry, Christopher B., and Winkler, Robert L.. “Nonstationary and Portfolio Choice.” Journal of Financial and Quantitative Analysis, Vol. 11 (06 1976), pp. 217–235.CrossRefGoogle Scholar
[7]Bawa, Vijay S.; Brown, Stephen J.; and Klein, Roger W.. Estimation Risk and Optimal Portfolio Choice. Amsterdam: North Holland (1979).Google Scholar
[8]Bawa, Vijay S., and Brown, Stephen J.. “Capital Market Equilibrium: Does Estimation Risk Really Matter?” Estimation Risk and Optimal Portfolio Choice, Bawa, Vijay S., Brown, Stephen J., and Klein, Roger W., eds. Amsterdam: North Holland (1979).Google Scholar
[9]Boyle, Phelim P., and Anathanarayanan, A. L.. “The Impact of Variance Estimation in the Pricing of Options.” Journal of Financial Economics, Vol. 5 (12 1977), pp. 375–387.CrossRefGoogle Scholar
[10]Brown, Stephen J. “The Effect of Estimation Risk on Capital Market Equilibrium.” Journal of Financial and Quantitative Analysis, Vol. 14 (06 1979), pp. 215–220.CrossRefGoogle Scholar
[11]Cragg, John G., and Malkiel, Burton G.. Expectations and the Structure of Share Prices. Chicago: University of Chicago Press (1982).CrossRefGoogle Scholar
[12]Jaffe, Jeffrey A., and Winkler, Robert L.. “Optimal Speculation against an Efficient Market.” Journal of Finance, Vol. 31 (03 1976), pp. 49–61.Google Scholar
[13]Kalymon, Basil. A. “Estimation Risk in the Portfolio Selection Model” Journal of Financial and Quantitative Analysis, Vol. 6 (01 1971), pp. 259–282.CrossRefGoogle Scholar
[14]Klein, Roger W., and Bawa, Vijay S.. “The Effect of Estimation Risk on Optimal Portfolio Choice.” Journal of Financial Economics, Vol. 3 (06 1976), pp. 215–231.CrossRefGoogle Scholar
[15]Klein, Roger W., and Bawa, Vijay S.. “The Effect of Limited Information and Estimation Risk on Optimal Portfolio Diversification.” Journal of Financial Economics, Vol. 5 (08 1977), pp. 89–111.CrossRefGoogle Scholar
[16]Lintner, John. “The Aggregation of Investor's Diverse Judgments and Preferences in Purely Competitive Security Markets.” Journal of Financial and Quantitative Analysis, Vol. 4 (12 1969), pp. 347–400.CrossRefGoogle Scholar
[17]Raiffa, H., and Schlaifer, R.. Applied Statistical Decision Theory. Cambridge, MA: M.I.T. Press (1961).Google Scholar
[18]Reinganum, Marc R. “Misspecification of Capital Asset Pricing: Empirical Anomalies Based on Earnings' Yields and Market Values.” Journal of Financial Economics, Vol. 9 (03 1981), pp. 19–46.CrossRefGoogle Scholar
[19]Reinganum, Marc R., and Smith, Janet Kiholm. “Investor Preference for Large Firms: New Evidence on Economies of Size.” Journal of Industrial Economics, Vol. 32 (12 1983), pp. 213–227.CrossRefGoogle Scholar
[20]Savage, Leonard J.The Foundations of Statistics. New York: Dover Publications (1954).Google Scholar
[21]Williams, Joseph T. “Capital Asset Prices with Heterogeneous Beliefs.” Journal of Financial Economics, Vol. 5 (11 1977), pp. 219–239.CrossRefGoogle Scholar
[22]Winkler, Robert L., and Barry, Christopher B.. “Nonstationary Means in a Multinomial Process.” Research Report RR–73–9, International Institute for Applied Systems Analysis, Laxenburg, Austria (1973).Google Scholar
[23]Zellner, Arnold, and Chetty, V. K.. “Prediction and Decision Problems in Regression Models from the Bayesian Point of View.” Journal of the American Statistical Association, Vol. 66 (06 1965), pp. 608–615.CrossRefGoogle Scholar