Illusion of control as a source of poor diversification: An experimental approach
This paper investigates factors influencing individual portfolio allocations with particular focus on the role of illusion of control. By forming their portfolio of two risky lotteries and one risk-less alternative, subjects are requested to reach a target investment profit, whereby equal diversification between the two risky lotteries is part of the solution space. Subjects however excessively invest in the lottery for which they can determine the outcome by rolling the die themselves indicating that they are prone to illusion of control. However, the effect vanishes with experience. In contrast, presenting random sequences of prior outcomes reduces biased investments. In line with the excessive extrapolation hypothesis, the more positive outcomes observed from past draws, the more likely is a positive prediction for this lottery, which is then followed by higher investment. Also, offering a default portfolio strongly determines final allocations.
|Date of creation:||May 2004|
|Contact details of provider:|| Postal: Kahlaische Strasse 10, D-07745 Jena|
Phone: +49-3641-68 65
Fax: +49-3641-68 69 90
Web page: http://www.econ.mpg.de/
More information through EDIRC
|Order Information:|| Web: http://www.econ.mpg.de/english/research/ESI/discuss.php Email: |
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.:
- Lucy Ackert & Narat Charupat & Bryan Church & Richard Deaves, 2006.
"An experimental examination of the house money effect in a multi-period setting,"
Springer;Economic Science Association, vol. 9(1), pages 5-16, April.
- Lucy F. Ackert & Narat Charupat & Bryan K. Church & James Tompkins & Richard Deaves, 2003. "An experimental examination of the house money effect in a multi-period setting," FRB Atlanta Working Paper 2003-13, Federal Reserve Bank of Atlanta.
- Markus Glaser & Thomas Langer & Martin Weber, 2007. "On the Trend Recognition and Forecasting Ability of Professional Traders," Decision Analysis, INFORMS, vol. 4(4), pages 176-193, December.
- Glaser, Markus & Langer, Thomas & Weber, Martin, 2003. "On the Trend Recognition and Forecasting Ability of Professional Traders," CEPR Discussion Papers 3904, C.E.P.R. Discussion Papers.
- Glaser, Markus & Langer, Thomas & Weber, Martin, 2003. "On the trend recognition and forecasting ability of professional traders," Sonderforschungsbereich 504 Publications 03-06, Sonderforschungsbereich 504, Universität Mannheim;Sonderforschungsbereich 504, University of Mannheim.
- Gary Charness & Uri Gneezy, 2010. "Portfolio Choice And Risk Attitudes: An Experiment," Economic Inquiry, Western Economic Association International, vol. 48(1), pages 133-146, 01.
- Charness, Gary & Gneezy, Uri, 2003. "Portfolio Choice and Risk Attitudes: An Experiment," University of California at Santa Barbara, Economics Working Paper Series qt7vz7w609, Department of Economics, UC Santa Barbara.
- Huberman, Gur, 2001. "Familiarity Breeds Investment," Review of Financial Studies, Society for Financial Studies, vol. 14(3), pages 659-680.
- Charles A. Holt & Susan K. Laury, 2002. "Risk Aversion and Incentive Effects," American Economic Review, American Economic Association, vol. 92(5), pages 1644-1655, December.
- Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer;Economic Science Association, vol. 10(2), pages 171-178, June.
- Richard H. Thaler & Shlomo Benartzi, 2001. "Naive Diversification Strategies in Defined Contribution Saving Plans," American Economic Review, American Economic Association, vol. 91(1), pages 79-98, March.
- Gur Huberman & Sheena Iyengar & Wei Jiang, 2007. "Defined Contribution Pension Plans: Determinants of Participation and Contributions Rates," Journal of Financial Services Research, Springer;Western Finance Association, vol. 31(1), pages 1-32, February.
- De Bondt, Werner F. M., 1998. "A portrait of the individual investor," European Economic Review, Elsevier, vol. 42(3-5), pages 831-844, May.
- Sendhil Mullainathan & Richard H. Thaler, 2000. "Behavioral Economics," NBER Working Papers 7948, National Bureau of Economic Research, Inc.
- 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.
- 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.
- De Bondt, Werner P. M., 1993. "Betting on trends: Intuitive forecasts of financial risk and return," International Journal of Forecasting, Elsevier, vol. 9(3), pages 355-371, November. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:esi:discus:2004-28. 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: (Karin Richter)
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.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 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.