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一种求解Black-Scholes方程差分格式的分析
Analysis of a difference method for solving Black-Scholes equation
【摘要】 首先将Black-Scholes方程通过适当的自变数等价代换变为一个定义在全空间上的标准的抛物型偏微分方程,然后对转化后的抛物型方程建立了一个稳定的差分格式,并通过Fourier分析方法证明了无条件稳定性,用追赶法求解差分格式后,将所得结果回代就得到我们要求的期权的价格。最后,给出了一个求解欧式看涨期权的数值算例,并与解析解进行了比较,计算表明该差分格式是稳定和收敛的,同时也验证了方法的实用性及可行性。
【Abstract】 Utilizing a proper equivalent transform,the Black-Scholes equation is transformed into a standard parabolic equation defined on the whole space,then a difference scheme with truncated error is constructed,which can be solved by the method of forward elimination and backward substitution,and it is proved to be unconditionally stable by Fourier analysis.The numerical examples verify the efficiency,convergence and practicality of the method.
【关键词】 Black-Scholes方程;
欧式看涨期权;
差分格式;
稳定性;
数值计算;
【Key words】 Black-Scholes equation; European call options; difference scheme; stability; numerical examples;
【Key words】 Black-Scholes equation; European call options; difference scheme; stability; numerical examples;
- 【文献出处】 华北电力大学学报 ,Journal of North China Electric Power University , 编辑部邮箱 ,2007年04期
- 【分类号】O241.82
- 【被引频次】5
- 【下载频次】196