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This paper proposes a latent dynamic factor model for low- as well as high-dimensional realized covariance matrices of stock returns. The approach is based on the matrix logarithm and allows for flexible dynamic dependence patterns by combining common latent factors driven by HAR dynamics and...
Persistent link: https://www.econbiz.de/10010341025
&P 500 index confirms the simulation results. -- covariance estimation ; blocking ; realized kernel ; regularization …
Persistent link: https://www.econbiz.de/10003893144
&P 500 index confirms the simulation results. -- Covariance Estimation ; Blocking ; Realized Kernel ; Regularization …
Persistent link: https://www.econbiz.de/10003909174
issues are considered, and are also related to existing conditional covariance and correlation models. Some caveats are given … about multivariate models of time-varying conditional covariance and correlation models. …
Persistent link: https://www.econbiz.de/10010250536
conditional correlation (CCC), dynamic conditional correlation (DCC), factor, asymmetric DCC and BEKK. Our simulations show that …
Persistent link: https://www.econbiz.de/10012945121
novel insights into intraday covariance and correlation dynamics. We show that intraday (co-)variations (i) follow …
Persistent link: https://www.econbiz.de/10013005821
extreme value theory (EVT) to propose a multivariate estimation procedure for value-at-risk (VaR) and expected shortfall (ES …
Persistent link: https://www.econbiz.de/10013100621
estimation of the covariances if traditional methods for low-frequency data are employed. We propose to model intraday log … microstructure noise is taken into account, (iii) estimation is performed by standard maximum likelihood. Our empirical analysis …
Persistent link: https://www.econbiz.de/10012854692
Persistent link: https://www.econbiz.de/10001659873
Persistent link: https://www.econbiz.de/10003964488