Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5499589 | Chaos, Solitons & Fractals | 2017 | 10 Pages |
Abstract
This paper considers an optimal asset-liability management problem with stochastic interest rates and inflation risks under the expected utility maximization framework, where the stochastic interest rate follows the Hull-White interest rate model and the inflation risk is modelled by an additional stochastic process. The investor can invest in n+1 assets: cash, a default-free zero-coupon bond, an inflation-indexed bond and nâ2 stocks. The liability process is given by a geometric Brownian motion rather than a Brownian motion to ensure a definite liability value. Applying the stochastic control theory and partial differential equation approach, we obtain the explicit solutions of optimal investment strategies for the power utility and exponential utility functions. We also provide numerical examples to show the effects of model parameters on the optimal investment strategies.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Statistical and Nonlinear Physics
Authors
Jian Pan, Qingxian Xiao,