A multivariate Ornstein-Uhlenbeck type stochastic volatility model
A multivariate Ornstein-Uhlenbeck type stochastic volatility model
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多元 Ornstein-Uhlenbeck 型随机波动率模型
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
R. Stelzer
中科院分区:
文献类型:
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作者:
Christian Pigorsch;R. Stelzer
Using positive semidefinite processes of Ornstein-Uhlenbeck type a multivariate Ornstein-Uhlenbeck (OU) type stochastic volatility model is introduced. We derive many important statistical and probabilistic properties, e.g. the complete second order structure and a state-space representation. Noteworthy, many of our results are shown to be valid for the more general class of multivariate stochastic volatility models, which are driven by a stationary and square-integrable covariance matrix process. For the OU type stochastic volatility our results enable estimation and filtering of the volatility which we finally demonstrate with a short empirical illustration of our model.