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Asypmtotic Filtering Theory for Univariate Arch Models

Listed author(s):
  • Daniel B. Nelson
  • Dean P. Foster

This paper builds on this earlier work by deriving the asymptotic distribution of the measurement error. This allows us to approximate the measurement accuracy of ARCH conditional variance estimates and compare the efficiency achieved by different ARCH models. We are also able to characterize the relative importance of different kinds of misspecification; for example, we show that misspecifying conditional means adds only trivially (at least asymptotically) to measurement error, while other factors (for example, capturing the "leverage effect," accommodating thick tailed residuals, and correctly modelling the variability of the conditional variance process) are potentially much more important. Third, we are able to characterize a class of asymptotically optimal ARCH conditional variance estimates.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Technical Working Papers with number 0129.

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Date of creation: Apr 1994
Publication status: published as Econometrica, Vol. 62, no. 1, pp. 1-41 (January 1994).
Handle: RePEc:nbr:nberte:0129
Note: AP
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