Forecasting Comparison of Long Term Component Dynamic Models for Realized Covariance Matrices
Novel model specifications that include a time-varying long-run component in the dynamics of realized covariance matrices are proposed. The modelling framework allows the secular component to enter the model either additively or as a multiplicative factor, and to be specified parametrically, using a MIDAS filter, or non-parametrically. Estimation is performed by maximizing a Wishart quasi-likelihood function. The one-step ahead forecasting performance is assessed by means of three approaches: model confidence sets, minimum variance portfolios and Value-at-Risk. The results show that the proposed models outperform benchmarks incorporating a constant long-run component both in and out-of-sample.
Volume (Year): (2016)
Issue (Month): 123-124 ()
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