Bayesian Hierarchical Copula Model for Financial Time series

02/28/2022
by   Paolo Onorati, et al.
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We discuss a Bayesian hierarchical copula model for clusters of financial time series. A similar approach has been developed in Zhuang et al. (2020). However, the prior distributions proposed there do not always provide a proper posterior. In order to circumvent the problem, we adopt a proper global-local shrinkage prior, which is also able to account for potential dependence structure among different clusters. The performance of the proposed model is presented through simulations and a real data analysis.

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