遗产
发表于 2025-3-23 10:23:37
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CANON
发表于 2025-3-23 16:56:40
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Countermand
发表于 2025-3-23 20:28:01
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打折
发表于 2025-3-23 22:46:51
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产生
发表于 2025-3-24 05:32:17
Characterizing Heteroscedasticity,y for increasing lags, whereas an exponential decay and power law decay can be eliminated. This shows that a multiscale structure should be used in the processes, capturing the observed long memory of the volatility clusters.
意外
发表于 2025-3-24 06:40:26
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Infraction
发表于 2025-3-24 14:14:16
Regime-Switching Process,ts on the parameters of a regime-switching process are quite strong. But within these constraints, it is not possible to obtain a realistic multiscale heteroscedasticity. The mug shots show clearly the limitations of this class of processes with respect to the desired stylized facts.
Unsaturated-Fat
发表于 2025-3-24 17:10:23
The Innovation Distributions,ticity. A Student distribution with a number of degrees of freedom around 5 gives a simple and good characterization of the empirical distributions. This shows that the fat tail observed in the return distributions is mostly generated by the innovations, while the volatility feed-back mechanism plays a small role.
Arthropathy
发表于 2025-3-24 20:43:35
J. Esteban Varela M.D.,Albert J. Varon M.D.he ARCH processes, the stochastic volatility processes, and the regime switching processes. The subsequent specific chapters present in detail the basic equation for the price random walk and the most interesting processes for the volatility in each category.
Mri485
发表于 2025-3-25 02:52:04
Bulat A. Ziganshin,John A. Elefteriadesant. The same tests applied to theoretical processes become a powerful selection criterion. The multiscale ARCH structure is able to reproduce the observed asymmetries, whereas the stochastic volatility processes cannot (regardless of the parameter values).