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Review of Financial Studies Vol. 17 No. 4 2004

Prospect Theory and Mean-Variance Analysis

Haim Levy; Moshe Levy

Abstract

The experimental results of prospect theory (PT) reveal suggest that investors make decisions based on change of wealth rather than total wealth, that preferences are S-shaped with a risk-seeking segment, and that probabilities are subjectively distorted. This article shows that while PT's findings are in sharp contradiction to the foundations of mean-variance (MV) analysis, counterintuitively, when diversification between assets is allowed, the MV and PT-efficient sets almost coincide. Thus one can employ the MV optimization algorithm to construct PT-efficient portfolios.

Volume
17
Issue
4
Pages
1015-1041
Sources
bibtex:phds-export.bib

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