Empirical Analysis of Affine Versus Nonaffine Variance Specifications in Jump-Diffusion Models for Equity Indices

Empirical Analysis of Affine Versus Nonaffine Variance Specifications in Jump-Diffusion Models for Equity Indices
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股票指数跳跃扩散模型中仿射与非仿射方差规范的实证分析

DOI:
10.1080/07350015.2014.922471
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发表时间:
2015
影响因子:
3
通讯作者:
N. Seeger
N. Seeger
中科院分区:
数学2区
文献类型:
--
作者:
Ignatieva;P. Rodrigues;N. Seeger

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本文探讨了几个关键问题时出现的建模股票收益率与随机方差。(i)即使使用非仿射方差规格,模型是否需要包括跳跃?我们发现,跳跃模型明显优于纯随机波动率模型。(ii)在跳跃扩散设置中,与非仿射模型相比,仿射方差规范的表现如何?我们发现,非仿射规范优于仿射模型,即使在包括跳跃。
This article investigates several crucial issues that arise when modeling equity returns with stochastic variance. (i) Does the model need to include jumps even when using a nonaffine variance specification? We find that jump models clearly outperform pure stochastic volatility models. (ii) How do affine variance specifications perform when compared to nonaffine models in a jump diffusion setup? We find that nonaffine specifications outperform affine models, even after including jumps.
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