A Multivariate Generalized Orthogonal Factor GARCH Model
多元广义正交因子 GARCH 模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接建立多元因子 GARCH 条件协方差模型,并用于汇率收益的波动传递检验,对应金融因子和波动率方向。
多元广义正交因子 GARCH 模型AI 解读 ↓
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In this paper we introduce a multivariate generalized autoregressive conditional heteroskedastic (GARCH) class of models with time-varying conditional eigenvalues. The dynamics of the eigenvalues is derived for the cases with nderlying Gaussian and Student’s t-distributed innovations based on the general theory of dynamic conditional score models by Creal, Koopman and Lucas (2013) and Harvey (2013). The resulting time-varying eigenvalue GARCH models – labeled ‘λ-GARCH’…