Confidence Interval Estimation Tasks and the Economics of Overconfidence
Experiments in psychology, where subjects estimate confidence intervals to a series of factual questions, have shown that individuals report far too narrow intervals. This has been interpreted as evidence of overconfidence in the preciseness of knowledge, a potentially serious violation of the rationality assumption in economics. Following these results a growing literature in economics has incorporated overconfidence in models of, for instance, financial markets. In this paper we investigate the robustness of results from confidence interval estimation tasks with respect to a number of manipulations: frequency assessments, peer frequency assessments, iteration, and monetary incentives. Our results suggest that a large share of the overconfidence in interval estimation tasks is an artifact of the response format. Using frequencies and monetary incentives reduces the measured overconfidence in the confidence interval method by about 65%. The results are consistent with the notion that subjects have a deep aversion to setting broad confidence intervals, a reluctance that we attribute to a socially rational trade-off between informativeness and accuracy.
|Date of creation:||22 Sep 2003|
|Date of revision:|
|Contact details of provider:|| Postal: The Economic Research Institute, Stockholm School of Economics, P.O. Box 6501, 113 83 Stockholm, Sweden|
Phone: +46-(0)8-736 90 00
Fax: +46-(0)8-31 01 57
Web page: http://www.hhs.se/
More information through EDIRC
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.:
- Camerer, Colin F. & Hogarth, Robin M., 1999.
"The Effects of Financial Incentives in Experiments: A Review and Capital-Labor-Production Framework,"
1059, California Institute of Technology, Division of the Humanities and Social Sciences.
- Camerer, Colin F & Hogarth, Robin M, 1999. "The Effects of Financial Incentives in Experiments: A Review and Capital-Labor-Production Framework," Journal of Risk and Uncertainty, Springer, vol. 19(1-3), pages 7-42, December.
- Smith, Vernon L & Walker, James M, 1993. "Monetary Rewards and Decision Cost in Experimental Economics," Economic Inquiry, Western Economic Association International, vol. 31(2), pages 245-61, April.
- Terrance Odean, 1998. "Volume, Volatility, Price and Profit When All Traders Are Above Average," Finance 9803001, EconWPA.
- Yates, J. Frank & Zhu, Ying & Ronis, David L. & Wang, Deng-Feng & Shinotsuka, Hiromi & Toda, Masanao, 1989. "Probability judgment accuracy: China, Japan, and the United States," Organizational Behavior and Human Decision Processes, Elsevier, vol. 43(2), pages 145-171, April.
- Orphanides, Athanasios, 2003.
"The quest for prosperity without inflation,"
Journal of Monetary Economics,
Elsevier, vol. 50(3), pages 633-663, April.
- Klayman, Joshua & Soll, Jack B. & Gonzalez-Vallejo, Claudia & Barlas, Sema, 1999. "Overconfidence: It Depends on How, What, and Whom You Ask, , , , , , , , ," Organizational Behavior and Human Decision Processes, Elsevier, vol. 79(3), pages 216-247, September.
- Terrance Odean, 1998. "Volume, Volatility, Price, and Profit When All Traders Are Above Average," Journal of Finance, American Finance Association, vol. 53(6), pages 1887-1934, December.
- Yates, J. Frank & Lee, Ju-Whei & Shinotsuka, Hiromi, 1996. "Beliefs about Overconfidence, Including Its Cross-National Variation," Organizational Behavior and Human Decision Processes, Elsevier, vol. 65(2), pages 138-147, February.
- Terrance Odean, 1999. "Do Investors Trade Too Much?," American Economic Review, American Economic Association, vol. 89(5), pages 1279-1298, December.
- Tobias J. Moskowitz & Annette Vissing-Jørgensen, 2002. "The Returns to Entrepreneurial Investment: A Private Equity Premium Puzzle?," American Economic Review, American Economic Association, vol. 92(4), pages 745-778, September.
- J. Bradford De Long & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann,, .
"The Survival of Noise Traders in Financial Markets,"
J. Bradford De Long's Working Papers
_123, University of California at Berkeley, Economics Department.
- De Long, J Bradford, et al, 1991. "The Survival of Noise Traders in Financial Markets," The Journal of Business, University of Chicago Press, vol. 64(1), pages 1-19, January.
- J. Bradford De Long & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1988. "The Survival of Noise Traders in Financial Markets," NBER Working Papers 2715, National Bureau of Economic Research, Inc.
- De Long, J. Bradford & Shleifer, Andrei & Summers, Lawrence H. & Waldmann, Robert J., 1991. "The Survival of Noise Traders in Financial Markets," Scholarly Articles 3725470, Harvard University Department of Economics.
- Tobias J. Moskowitz & Annette Vissing-Jorgensen, 2002. "The Returns to Entrepreneurial Investment: A Private Equity Premium Puzzle?," NBER Working Papers 8876, National Bureau of Economic Research, Inc.
- Kent Daniel & David Hirshleifer & Avanidhar Subrahmanyam, 1998. "Investor Psychology and Security Market Under- and Overreactions," Journal of Finance, American Finance Association, vol. 53(6), pages 1839-1885, December.
- Brad M. Barber & Terrance Odean, 2001. "Boys will be Boys: Gender, Overconfidence, and Common Stock Investment," The Quarterly Journal of Economics, Oxford University Press, vol. 116(1), pages 261-292.
- Werner F. M. De Bondt & Richard H. Thaler, 1994. "Financial Decision-Making in Markets and Firms: A Behavioral Perspective," NBER Working Papers 4777, National Bureau of Economic Research, Inc.
- Kyle, Albert S & Wang, F Albert, 1997. " Speculation Duopoly with Agreement to Disagree: Can Overconfidence Survive the Market Test?," Journal of Finance, American Finance Association, vol. 52(5), pages 2073-90, December.
- Dowie, Jack A, 1976. "On the Efficiency and Equity of Betting Markets," Economica, London School of Economics and Political Science, vol. 43(17), pages 139-50, May.
- Smith, Vernon L, 1991. "Rational Choice: The Contrast between Economics and Psychology," Journal of Political Economy, University of Chicago Press, vol. 99(4), pages 877-97, August.
When requesting a correction, please mention this item's handle: RePEc:hhs:hastef:0535. 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: (Helena Lundin)
If references are entirely missing, you can add them using this form.