COPAR - Multivariate time series modeling using the COPula AutoRegressive model

Details COPAR - Multivariate time series modeling using the COPula AutoRegressive model COPAR - Multivariate time series modeling using the COPula AutoRegressive model

2012-03-15

arxiv.org/abs/1203.3328v3

Statistics

Methodology

arXiv admin note: extreme overlap with arXiv:1202.1998

Scientific paper

Analysis of multivariate time series is a common problem in areas like finance and economics. The classical tool for this purpose are vector autoregressive models. These however are limited to the modeling of linear and symmetric dependence. We propose a novel copula-based model which allows for non-linear and asymmetric modeling of serial as well as between-series dependencies. The model exploits the flexibility of vine copulas which are built up by bivariate copulas only. We describe statistical inference techniques for the new model and demonstrate its usefulness in three relevant applications: We analyze time series of macroeconomic indicators, of electricity load demands and of bond portfolio returns.

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