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Continuous Time Approximations to GARCH(1, 1)-Family Models and Their Limiting Properties

  • Lee, O. (Department of Statistics, Ewha Womans University)
  • Received : 2014.05.18
  • Accepted : 2014.06.24
  • Published : 2014.07.31

Abstract

Various modified GARCH(1, 1) models have been found adequate in many applications. We are interested in their continuous time versions and limiting properties. We first define a stochastic integral that includes useful continuous time versions of modified GARCH(1, 1) processes and give sufficient conditions under which the process is exponentially ergodic and ${\beta}$-mixing. The central limit theorem for the process is also obtained.

Keywords

References

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