Optimal Investment with Noise Trading Risk |
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Authors: | Yunhui XU Zhongfei LI Ken Seng TAN |
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Institution: | (1) Lingnan College, Sun Yat-Sen University, Guangzhou, 510275, China;(2) Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada;(3) China Institute for Actuarial Science, Central University of Finance and Economics, Beijing, 100081, China |
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Abstract: | This paper investigates the optimal dynamic investment for an investor who maximizes constant absolute risk aversion (CARA)
utility in a discrete-time market with a riskfree bond and a risky stock. The risky stock is assumed to present both the dividend
risk and the price risk. With our assumptions, the dividend risk is equivalent to fundamental risk, and the price risk is
equivalent to the noise trading risk. The analytical expression for the optimal investment strategy is obtained by dynamic
programming. The main result in this paper highlights the importance of differentiating between noise trading risk and fundamental
risk for the optimal dynamic investment.
Xu acknowledges the Institute for Quantitative Finance and Insurance (IQFI) at the University of Waterloo. Li would like to
acknowledge the National Science Foundation of China under Grant No. 70518001, the National Basic Research Program of China
(973 Program) under Grant No. 2007CB814902, and the Social Science & Humanities foundation of Ministry of Education of China
under Grant No. 07JA630031. Tan acknowledges the funding from the Canada Research Chairs Program, the Natural Sciences and
Engineering Research Council of Canada, and the Cheung Kong Scholar Program of China. |
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Keywords: | Dynamic investment noise trade overlapping generation serial correlation |
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