The Capital Asset Pricing Model (CAPM) and the mean-variance (M-V) rule, which are based on classic expected utility theory, have been heavily criticized theoretically and empirically. The advent of behavioral economics, prospect theory and other psychology-minded approaches in finance challenges the rational investor model from which CAPM and M-V derive. Haim Levy argues that the tension between the classic financial models and behavioral economics approaches is more apparent than real. This book aims to relax the tension between the two paradigms. Specifically, Professor Levy shows that although behavioral economics contradicts aspects of expected utility theory, CAPM and M-V are intact in both expected utility theory and cumulative prospect theory frameworks. There is furthermore no evidence to reject CAPM empirically when ex-ante parameters are employed. Professionals may thus comfortably teach and use CAPM and behavioral economics or cumulative prospect theory as coexisting paradigms.
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1. Overview; 2. Expected utility theory; 3. Expected utility and investment decision rules; 4. The mean-variance rule; 5. The capital asset pricing model (CAPM); 6. Extensions of the CAPM; 7. The CAPM cannot be rejected: empirical and experimental evidence; 8. Theoretical and empirical criticisms of the M-V rule; 9. Prospect theory and expected utility; 10. Cumulative decision weights: no dominance violation; 11. M-V rule, the CAPM, and the cumulative prospect theory: coexistence.
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'Currently, trillions of dollars are managed with the aid of quantitative techniques. Major paradigms of quantitative finance include expected utility theory, mean-variance optimization, the closely-related capital asset pricing model, prospect theory, and (Professor Levy's own creation) stochastic dominance. In this book, Professor Levy presents a penetrating analysis of the relationships among these paradigms, often finding mutual support where others find only conflict.' Harry Markowitz, Nobel Laureate, University of California, San Diego
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This book bridges behavioral economics and the classical models in finance to show that there is no contradiction between them.
Produktdetaljer
ISBN
9780521186513
Publisert
2011-10-30
Utgiver
Vendor
Cambridge University Press
Vekt
600 gr
Høyde
229 mm
Bredde
152 mm
Dybde
23 mm
Aldersnivå
P, 06
Språk
Product language
Engelsk
Format
Product format
Heftet
Antall sider
456
Forfatter