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一类多因子利率模型及其性质 被引量:1

A multi-factor interest rate model and its properties
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摘要 利率在资产定价和风险管理中是一个非常重要的变量。为研究复杂的利率期限结构,提出一个波动率满足Ait-Sahalia模型的高度非线性随机利率模型,并对该模型非负解的存在唯一性、矩有界性以及Euler-Maruyama数值解的收敛性进行证明。采用MATLAB软件对此模型进行数值模拟,验证了这一模型在利率上的适用性。 The interest rate is a very important variable in the asset pricing and risk management.To study the complex term structure of interest rate,a highly nonlinear stochastic interest rate model whose volatility met the Ait-Sahalia model was proposed.Then the existence uniqueness,moment boundedness,and convergence of the non-negative solution of the model and the Euler-Maruyama numerical solution were proved.The applicability of the model to interest rate was verified by numerical simulation using MATLAB software.
作者 徐麒 胡良剑 XU Qi;HU Liangjian(College of Science,Donghua University,Shanghai 201620,China)
机构地区 东华大学理学院
出处 《东华大学学报(自然科学版)》 CAS 北大核心 2021年第5期128-134,142,共8页 Journal of Donghua University(Natural Science)
基金 国家自然科学基金(11471071)。
关键词 利率期限结构 随机微分方程 Ait-Sahalia模型 EULER-MARUYAMA方法 数值模拟 interest rate term structure stochastic differential equations Ait-Sahalia model Euler-Maruyama method numerical simulation
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