Prospect-Theory, Mental Accounting and Differences in Aggregated and Segregated Evaluation of Lottery Portfolios
AbstractIf individuals have to evaluate a portfolio (or sequence) of lotteries their judgment is influenced by the portfolio presentation mode. Experimental studies (Redelmeier and Tversky, 1992, Benartzi and Thaler, 1998) found significantly higher acceptance rates for a sequence of lotteries, if the overall distribution was displayed instead of the set of lotteries itself. The literature provides an easy and intuitive explanation for this phenomenon based on mental accounting and loss aversion. It predicts the experimental findings to translate to all kinds of lottery types and portfolio sizes. In this paper we offer an explanation, which incorporates further evaluation concepts of Prospect Theory. Our formal analysis of the difference in aggregated and segregated portfolio evaluation demonstrates that the higher attractiveness of the aggregated presentation mode is not a general phenomenon, but depends on specific parameters of the lotteries. The theoretical findings are supported by an experimental study. In contrast to the existing evidence and in line with our theoretical results we find for specific types of lotteries an even lower acceptance rate, if the overall distribution is displayed.
Download InfoTo our knowledge, this item is not available for download. To find whether it is available, there are three options:
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
Bibliographic InfoPaper provided by Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim in its series Sonderforschungsbereich 504 Publications with number 99-64.
Length: 28 pages
Date of creation: 21 Jun 1999
Date of revision:
Note: Financial Support from the Deutsche Forschungsgemeinschaft, SFB 504, at the University of Mannheim, is gratefully acknowledged.
Contact details of provider:
Postal: D-68131 Mannheim
Phone: (49) (0) 621-292-2547
Fax: (49) (0) 621-292-5594
Web page: http://www.sfb504.uni-mannheim.de/
More information through EDIRC
Web page: http://www.sfb504.uni-mannheim.de
You can help add them by filling out this form.
reading list or among the top items on IDEAS.Access and download statisticsgeneral 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: (Carsten Schmidt).
If references are entirely missing, you can add them using this form.