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dynamics adapts to the non-normal nature of financial data, which helps to robustify the volatility estimates. The new model … volatility forecasting of stock returns and exchange rates. …
Persistent link: https://www.econbiz.de/10010384110
volatility forecasting into two pillars: the realized variances and realized correlations and quantifies the corresponding …% and at least 78%). The results on the GMV portfolios show that realized covariance models exhibit lower ex-post volatility …
Persistent link: https://www.econbiz.de/10015064180
the variance matrix. Monte Carlo evidence for parameter estimation based on different small sample sizes is provided. We …
Persistent link: https://www.econbiz.de/10011520881
In the analysis of multivariate stochastic volatility models, many estimation procedures begin by transforming the data …
Persistent link: https://www.econbiz.de/10015333113
orhistorical and Monte Carlo simulation methods. Although these approaches to overall VaR estimation have receivedsubstantial … the underlying statistical distributions, a variety of analyticalmethods and simulation-based methods are available. Aside … and incremental VaR in either a non-normal analytical setting or a MonteCarlo / historical simulation context.This paper …
Persistent link: https://www.econbiz.de/10011301159
Accurate prediction of the frequency of extreme events is of primary importance in many financialapplications such as Value-at-Risk (VaR) analysis. We propose a semi-parametric method for VaRevaluation. The largest risks are modelled parametrically, while smaller risks are captured by the...
Persistent link: https://www.econbiz.de/10010533206
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
This paper considers spot variance path estimation from datasets of intraday high frequency asset prices in the … microstructure noise has an adverse effect on both spot variance estimation and jump detection. In our approach we can analyze high …
Persistent link: https://www.econbiz.de/10011379469
Persistent link: https://www.econbiz.de/10010191413
model for the autoregressive coefficient matrices and a multivariate dynamic volatility model for the variance matrix of the … alternative to Bayesian methods which are regularly employed in the empirical literature. A simulation study shows the reliability … and robustness of the method against potential misspecifications of the volatility in the disturbance vector. We further …
Persistent link: https://www.econbiz.de/10012591572