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The increase in trading frequency of Exchanged Traded Funds (ETFs) presents a positive externality for financial risk management when the price of the ETF is available at a higher frequency than the price of the component stocks. The positive spillover consists in improving the accuracy of...
Persistent link: https://www.econbiz.de/10013235022
. These seven scripts contain the Dynamic Conditional Correlation (DCC) framework, Instantaneous Frequency Forecasting (IFF … RCR framework to forecast covariance and correlation structures and finally apply portfolio weighting strategies based on …
Persistent link: https://www.econbiz.de/10014253907
for volatility, correlation and covariance using high frequency financial data. It also implements complementary …
Persistent link: https://www.econbiz.de/10013237488
modelling that enables stochastic structural change in model parameters and on model estimation by Bayesian or non …-parametric kernel methods. In the context of the estimation of covariance matrices of large dimensional panels, such data requires … applicable in econometric analysis beyond estimation of large covariance matrices. We discuss the utility of the robust …
Persistent link: https://www.econbiz.de/10012316010
We introduce a new fractionally integrated model for covariance matrix dynamics based on the long-memory behavior of daily realized covariance matrix kernels and daily return observations. We account for fat tails in both types of data by appropriate distributional assumptions. The covariance...
Persistent link: https://www.econbiz.de/10011531139
into intraday covariance and correlation dynamics. We show that intraday (co-)variations (i) follow underlying periodicity …
Persistent link: https://www.econbiz.de/10010411945
into intraday covariance and correlation dynamics. We show that intraday (co-)variations (i) follow underlying periodicity …
Persistent link: https://www.econbiz.de/10010412428
The estimation of the covariances of high-frequency asset prices is problematic because of asynchronous trading and …
Persistent link: https://www.econbiz.de/10012841029
novel statistical methods have been introduced to address large volatility matrix estimation problems from a high … Huber loss function with a diverging threshold to develop a robust realized volatility estimation. We show that it has the … the proposed estimation methods …
Persistent link: https://www.econbiz.de/10012941604
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