Communications for Statistical Applications and Methods

The Korean Statistical Society (한국통계학회)
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Functional central limit theorems for ARCH(∞) models

  • Choi, Seunghee (Department of Statistics, Ewha Womans University) ;
  • Lee, Oesook (Department of Statistics, Ewha Womans University)
  • Received : 2017.03.28
  • Accepted : 2017.09.14
  • Published : 2017.09.30
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Abstract

In this paper, we study ARCH(${\infty}$) models with either geometrically decaying coefficients or hyperbolically decaying coefficients. Most popular autoregressive conditional heteroscedasticity (ARCH)-type models such as various modified generalized ARCH (GARCH) (p, q), fractionally integrated GARCH (FIGARCH), and hyperbolic GARCH (HYGARCH). can be expressed as one of these cases. Sufficient conditions for $L_2$-near-epoch dependent (NED) property to hold are established and the functional central limit theorems for ARCH(${\infty}$) models are proved.

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References

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