Bubbles, Human Judgment, and Expert Opinion
Research in psychology and behavioral finance is surveyed for evidence to what extent experts such as professional investment managers or endowment trustees may behave in such a way as to help perpetuate speculative bubbles in financial markets. This paper discusses scholarly psychological literature on the representativeness heuristic, overconfidence, attentional anomalies, self-esteem, conformity pressures, salience and justification for insights into weaknesses in expert opinion. The role of the prudent person standard and the news media in influencing experts is considered. The relevance of the literature on testing of the efficient markets theory is discussed.
|Date of creation:||May 2001|
|Date of revision:|
|Publication status:||Published in Financial Analysts Journal (May/June 2002), 58(3): 18–26; and in The ICFAI Journal of Behavioral Finance (India) (September 2004), 1(3): 7–17|
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- Basu, Sanjoy, 1983. "The relationship between earnings' yield, market value and return for NYSE common stocks : Further evidence," Journal of Financial Economics, Elsevier, vol. 12(1), pages 129-156, June.
- Heath, Chip & Tversky, Amos, 1991. "Preference and Belief: Ambiguity and Competence in Choice under Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 4(1), pages 5-28, January.
- Nicholas Barberis & Andrei Shleifer & Robert W. Vishny, 1997.
"A Model of Investor Sentiment,"
NBER Working Papers
5926, National Bureau of Economic Research, Inc.
- John Y. Campbell & Robert J. Shiller, 2001.
"Valuation Ratios and the Long-Run Stock Market Outlook: An Update,"
NBER Working Papers
8221, National Bureau of Economic Research, Inc.
- John Y. Campbell & Robert J. Shiller, 2001. "Valuation Ratios and the Long-run Stock Market Outlook: An Update," Cowles Foundation Discussion Papers 1295, Cowles Foundation for Research in Economics, Yale University.
- Robert J. Shiller & John Pound, 1986. "Survey Evidence on Diffusion of Interest Among Institutional Investors," Cowles Foundation Discussion Papers 794, Cowles Foundation for Research in Economics, Yale University.
- Peter M. deMarzo & Dimitri Vayanos & Jeffrey Zwiebel, 2000. "A Model of Persuasion - With Implications for Financial Markets," Econometric Society World Congress 2000 Contributed Papers 1635, Econometric Society.
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