Francq, Christian and Zakoian, JeanMichel (2009): Bartlett's formula for a general class of non linear processes.

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Abstract
A Bartletttype formula is proposed for the asymptotic distribution of the sample autocorrelations of nonlinear processes. The asymptotic covariances between sample autocorrelations are expressed as the sum of two terms. The first term corresponds to the standard Bartlett's formula for linear processes, involving only the autocorrelation function of the observed process. The second term, which is specific to nonlinear processes, involves the autocorrelation function of the observed process, the kurtosis of the linear innovation process and the autocorrelation function of its square. This formula is obtained under a symmetry assumption on the linear innovation process. An application to GARCH models is proposed.
Item Type:  MPRA Paper 

Original Title:  Bartlett's formula for a general class of non linear processes 
Language:  English 
Keywords:  Bartlett's formula, nonlinear time series model, sample autocorrelation, GARCH model, weak white noise 
Subjects:  C  Mathematical and Quantitative Methods > C1  Econometric and Statistical Methods and Methodology: General > C13  Estimation: General C  Mathematical and Quantitative Methods > C1  Econometric and Statistical Methods and Methodology: General > C12  Hypothesis Testing: General C  Mathematical and Quantitative Methods > C2  Single Equation Models; Single Variables > C22  TimeSeries Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models 
Item ID:  13224 
Depositing User:  Unnamed user with email zakoian@ensae.fr 
Date Deposited:  07. Feb 2009 05:38 
Last Modified:  12. Feb 2013 08:18 
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URI:  http://mpra.ub.unimuenchen.de/id/eprint/13224 