A stochastic-local volatility model with Levy jumps for pricing derivatives

被引:1
|
作者
Kim, Hyun-Gyoon [1 ,2 ]
Kim, Jeong-Hoon [1 ]
机构
[1] Yonsei Univ, Dept Math, Seoul 03722, South Korea
[2] Ajou Univ, Dept Financial Engn, Suwon 16499, South Korea
基金
新加坡国家研究基金会;
关键词
Elasticity of variance; Stochastic volatility; Levy Process; Derivatives pricing; Partial integro-differential equation; OPTIONS; RETURNS;
D O I
10.1016/j.amc.2023.128034
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We introduce a new mixed model unifying local volatility, pure stochastic volatility, and L e ' vy type of jumps in this paper. Our model framework allows the pure stochastic volatil-ity and the jump intensity to be functions of fast (and slowly) varying stochastic processes and the local volatility to be given in a constant elasticity of variance type of parametric form. We use asymptotic analysis to derive a system of partial integro-differential equa-tions for the prices of European derivatives and use Fourier analysis to obtain an explicit formula for the prices. Our result is an extension of a stochastic-local volatility model from no jumps to L e ' vy jumps and an extension of a multiscale stochastic volatility model with L e ' vy jumps from the zero elasticity of variance to the non-zero elasticity of variance. We find that our model outperforms two benchmark models in view of fitting performance when the time-to-maturities of European options are relatively short and outperforms one benchmark model in terms of pricing time cost.(c) 2023 Elsevier Inc. All rights reserved.
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页数:17
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