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Opschoor, Anne
Lucas, André
Barra, Istvan
van Dijk, Dick
Year of Publication: 
Series/Report no.: 
Tinbergen Institute Discussion Paper No. TI 2019-013/IV
We develop new multi-factor dynamic copula models with time-varying factor loadings and observation-driven dynamics. The new models are highly flexible, scalable to high dimensions, and ensure positivity of covariance and correlation matrices. A closed-form likelihood expression allows for straightforward parameter estimation and likelihood in- ference. We apply the new model to a large panel of 100 U.S. stocks over the period 2001Ð2014. The proposed multi-factor structure is much better than existing (single- factor) models at describing stock return dependence dynamics in high-dimensions. The new factor models also improve one-step-ahead copula density forecasts and global min- imum variance portfolio performance. Finally, we investigate different mechanisms to allocate firms into groups and find that a simple industry classification outperforms al- ternatives based on observable risk factors, such as size, value or momentum.
factor copulas
factor structure
score-driven dynamics
multivariate density forecast
Document Type: 
Working Paper

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