A multifactor transformed diffusion model with applications to VIX and VIX futures
A multifactor transformed diffusion model with applications to VIX and VIX futures
复制标题
多因素转换扩散模型及其在 VIX 和 VIX 期货中的应用
DOI:
10.1080/07474938.2019.1690195
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发表时间:
2019
影响因子:
1.2
通讯作者:
Bu R
中科院分区:
文献类型:
--
作者:
Bu R
Transformed diffusions (TDs) have become increasingly popular in financial modeling for their model flexibility and tractability. While existing TD models are predominately one-factor models, empirical evidence often prefers models with multiple factors. We propose a novel distribution-driven nonlinear multifactor TD model with latent components. Our model is a transformation of a underlying multivariate Ornstein–Uhlenbeck (MVOU) process, where the transformation function is endogenously specified by a flexible parametric stationary distribution of the observed variable. Computationally efficient exact likelihood inference can be implemented for our model using a modified Kalman filter algorithm and the transformed affine structure also allows us to price derivatives in semi-closed form. We compare the proposed multifactor model with existing TD models for modeling VIX and pricing VIX futures. Our results show that the proposed model outperforms all existing TD models both in the sample and out of the sample consistently across all categories and scenarios of our comparison.
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影响因子:
0.8
作者:
S. Choi
通讯作者:
S. Choi
DOI:
10.1142/s0219024902001511
发表时间:
2002-06
影响因子:
0.5
作者:
D. Brigo;F. Mercurio
通讯作者:
D. Brigo;F. Mercurio
影响因子:
0.8
作者:
Bu R
通讯作者:
Bu R
影响因子:
8.2
作者:
Timothy G. Conley;L. Hansen;Erzo G. J. Luttmer;J. Scheinkman
通讯作者:
J. Scheinkman
DOI:
10.1016/j.intfin.2016.08.003
发表时间:
2017
期刊:
Journal of International Financial Markets, Institutions and Money
影响因子:
--
作者:
Bu R
通讯作者:
Bu R