What does GARCH mean in Mathematics?
This page is about the meanings of the acronym/abbreviation/shorthand GARCH in the Academic & Science field in general and in the Mathematics terminology in particular.
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Definition
What does GARCH mean?
- GARCH
- In econometrics, the autoregressive conditional heteroskedasticity (ARCH) model is a statistical model for time series data that describes the variance of the current error term or innovation as a function of the actual sizes of the previous time periods' error terms; often the variance is related to the squares of the previous innovations. The ARCH model is appropriate when the error variance in a time series follows an autoregressive (AR) model; if an autoregressive moving average (ARMA) model is assumed for the error variance, the model is a generalized autoregressive conditional heteroskedasticity (GARCH) model.ARCH models are commonly employed in modeling financial time series that exhibit time-varying volatility and volatility clustering, i.e. periods of swings interspersed with periods of relative calm. ARCH-type models are sometimes considered to be in the family of stochastic volatility models, although this is strictly incorrect since at time t the volatility is completely pre-determined (deterministic) given previous values.
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"GARCH." Abbreviations.com. STANDS4 LLC, 2025. Web. 14 Mar. 2025. <https://www.abbreviations.com/term/215084>.
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