A nonlinear model for long memory conditional heteroscedasticity
Autor: | Doukhan, Paul, Grublytė, Ieva, Surgailis, Donatas |
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Rok vydání: | 2015 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | We discuss a class of conditionally heteroscedastic time series models satisfying the equation $r_t= \zeta_t \sigma_t$, where $\zeta_t$ are standardized i.i.d. r.v.'s and the conditional standard deviation $\sigma_t$ is a nonlinear function $Q$ of inhomogeneous linear combination of past values $r_s, s |
Databáze: | arXiv |
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