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when transformed by wavelets.In this paper we generalize the long-memory parameter estimator of McCoy and Walden (1996) to … approximate an ARFIMA model's likelihood function with the series' wavelet coefficientsand their variances. Maximization of this … likelihood estimates of the ARFIMA model.By simultaneously maximizing the likelihood function over both the short and long …
Persistent link: https://www.econbiz.de/10014620822
when transformed by wavelets.In this paper we generalize the long-memory parameter estimator of McCoy and Walden (1996) to … approximate an ARFIMA model's likelihood function with the series' wavelet coefficientsand their variances. Maximization of this … likelihood estimates of the ARFIMA model.By simultaneously maximizing the likelihood function over both the short and long …
Persistent link: https://www.econbiz.de/10005046475
wavelets. In this paper we generalize the long-memory parameter estimator of McCoy and Walden (1996) to simultaneously estaimte … approximate an ARFIMA models likelihood function with the series wavelet coefficients and their variances. Maximization of this … likelihood estimator of the ARFIMA model. By simultaneously maximizing the likelihood function over both the short and long …
Persistent link: https://www.econbiz.de/10005119098
In this paper we apply compactly supported wavelets to the ARFIMA(p,d,q) long-memory process to develop an alternative … of compactly supported wavelets, series length, and contamination by generating ARFIMA(p,d,q) processes for different …. In our simulations we find the wavelet MLE to be superior to the approximate MLE when estimating contaminated ARFIMA(0,d …
Persistent link: https://www.econbiz.de/10005407968
Persistent link: https://www.econbiz.de/10010418936
Apart from the well-known, high persistence of daily financial volatility data, there is also a short correlation structure that reverts to the mean in less than a month. We find this short correlation time scale in six different daily financial time series and use it to improve the short-term...
Persistent link: https://www.econbiz.de/10005062571
This study examines the long memory properties of composite, equity, mortgage, and hybrid real estate investment trust (REIT) returns by using semi-parametric and wavelet estimators. In particular, this paper applies the GPH semi-parametric estimator, the Haar and the Daubechies wavelet...
Persistent link: https://www.econbiz.de/10008836556
Persistent link: https://www.econbiz.de/10011311313
Persistent link: https://www.econbiz.de/10011780438
Persistent link: https://www.econbiz.de/10012435747