Showing 1 - 10 of 83
 We propose a new class of multivariate volatility models utilizing realized measures of asset volatility and covolatility extracted from high-frequency data. Dimension reduction for estimation of large covariance matrices is achieved by imposing a factor structure with time-varying conditional...
Persistent link: https://www.econbiz.de/10011004389
benchmark, we find some evidence that more sophisticated realized measures significantly outperform 5-minute RV.  In forecasting …
Persistent link: https://www.econbiz.de/10011004204
series, there is no clear consensus regarding the forecasting abilities of these models. In this paper we develop a general … approach to predict multiple time series subject to Markovian shifts in the regime. The feasibility of the proposed forecasting …
Persistent link: https://www.econbiz.de/10010605227
Likelihood based estimation of the parameters of state space models can be carried out via a particle filter.  In this paper we show how to make valid inference on such parameters when the model is incorrect.  In particular we develop a simulation strategy for computing sandwich covariance...
Persistent link: https://www.econbiz.de/10011004407
High frequency financial data allows us to learn more about volatility, volatility of volatility and jumps.  One of the … estimates time-varying volatility robustly to jumps.  We improve the scope and efficiency of multipower variation by the use of …
Persistent link: https://www.econbiz.de/10009650770
Financial assets` quoted prices normally change through frequent revisions, or jumps. For markets where quotes are …, to the number of other jumps. Many markets exhibit a lack of autocorrelation in their quotes` alternation pattern. Under … quite general no leverage assumptions, whenever this is so the proposed statistic is consistent as the intensity of jumps …
Persistent link: https://www.econbiz.de/10010661345
We consider kernel-based estimators of integrated variances in the presence of independent market microstructure effects. We derive the bias and variance properties for all regular kernel-based estimators and derive a lower bound for their asymptotic variance. Further we show that the...
Persistent link: https://www.econbiz.de/10010661376
jumps become very frequent and small. Feasible limit theory is developed, and in simulations works well. …
Persistent link: https://www.econbiz.de/10004977856
inflation forecasting.  The model generalises to unobserved component models where Gaussian shocks are replaced by martingale …
Persistent link: https://www.econbiz.de/10011004138
of sample forecasting performance to the end of 2007 is examined.  Aggregating the weighted sub-component forecasts … indicates gains are made over forecasting the overall index using these methods, and also substantial gains over forecasting … policy, regulatory information and announced administred price rises, should further enhance these forecasting methods. …
Persistent link: https://www.econbiz.de/10011004341