How can I fit IGARCH models using the Econometrics Toolbox?
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MathWorks Support Team
le 14 Juil 2009
Modifié(e) : MathWorks Support Team
le 15 Juin 2020
I would like to know if the Econometrics Toolbox supports IGARCH models.
I would also like to know if I can change the relationship ARCH + GARCH <1.
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MathWorks Support Team
le 15 Juin 2020
Modifié(e) : MathWorks Support Team
le 15 Juin 2020
The ability to fit IGARCH models is currently not available in the Econometrics Toolbox.
Models with GARCH + ARCH = 1 are known as IGARCH (Integrated GARCH) models. These are considered a different "flavor" of the GARCH model than the type that the Econometrics Toolbox fits. In particular, the Econometrics Toolbox's GARCH model is designed for the case where GARCH + ARCH < 1.
One possible workaround is to check for third-party-contributions in MathWorks File Exchange or other such forums. For example, a quick online search brought up the following third-party MATLAB routines that include IGARCH model estimation:
However, please note that MathWorks does not guarantee or warrant the use or content of these third-party packages. In case of any questions/issues regarding the above third-party functions, we recommend that you reach out to the respective third-party author(s).
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