Survey Evidence on Diffusion of Interest Among Institutional Investors
Contagion or epidemic models of financial markets are proposed in which interest in or attention to individual stocks is spread by word of mouth. The models give alternative interpretations of the random walk character of stock prices. A questionnaire survey of institutional investors was undertaken to ascertain the relevance of such models. Questions elicited what fraction of these investors were unsystematic and allowed themselves to be influenced by word-of-mouth communications or other salient stimuli. Rough indications of the infection rate and removal rate were produced. Investors in stocks whose price had recently increased dramatically to a high P/E ratio were contrasted with a control group of investors.
|Date of creation:||May 1986|
|Date of revision:|
|Publication status:||Published in Journal of Economic Behavior and Organization (August 1989), 12(1): 47-66|
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- Reinganum, Marc R., 1981. "Misspecification of capital asset pricing : Empirical anomalies based on earnings' yields and market values," Journal of Financial Economics, Elsevier, vol. 9(1), pages 19-46, March.
- De Bondt, Werner F M & Thaler, Richard, 1985. " Does the Stock Market Overreact?," Journal of Finance, American Finance Association, vol. 40(3), pages 793-805, July.
- Richard P. Bagozzi & Alvin J. Silk, 1983. "Recall, Recognition, and the Measurement of Memory for Print Advertisements," Marketing Science, INFORMS, vol. 2(2), pages 95-134.
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