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Numerical methods for backward Markov chain driven Black-Scholes option pricing |
Chi Yan AU, Eric S. FUNG, Leevan LING() |
Department of Mathematics, Hong Kong Baptist University, Hong Kong, China |
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Abstract The drift, the risk-free interest rate, and the volatility change over time horizon in realistic financial world. These frustrations break the necessary assumptions in the Black-Scholes model (BSM) in which all parameters are assumed to be constant. To better model the real markets, a modified BSM is proposed for numerically evaluating options price–changeable parameters are allowed through the backward Markov regime switching. The method of fundamental solutions (MFS) is applied to solve the modified model and price a given option. A series of numerical simulations are provided to illustrate the effect of the changing market on option pricing.
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Keywords
backward Markov regime switching
method of fundamental solutions (MFS)
free boundary problem
American option
European option
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Corresponding Author(s):
LING Leevan,Email:lling@hkbu.edu.hk
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Issue Date: 01 February 2011
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