Transcription of GENERALIZED AUTOREGRESSIVE CONDITIONAL …
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Journal of econometrics 31 (1986) 307-327. North-Holland GENERALIZED AUTOREGRESSIVE CONDITIONAL heteroskedasticity Tim BOLLERSLEV* University of California at San Diego, La Jolla, CA 92093, USA Institute of Economics, University of Aarhus, Denmark Received May 1985, final version received February 1986 A natural generalization of the ARCH ( AUTOREGRESSIVE CONDITIONAL Heteroskedastic) process introduced in Engle (1982) to allow for past CONDITIONAL variances in the current CONDITIONAL variance equation is proposed. Stationarity conditions and autocorrelation structure for this new class of parametric models are derived. Maximum likelihood estimation and testing are also considered.
Journal of Econometrics 31 (1986) 307-327. North-Holland GENERALIZED AUTOREGRESSIVE CONDITIONAL HETEROSKEDASTICITY Tim BOLLERSLEV* University of California at San Diego, La Jolla, CA 92093, USA Institute of Economics, University of Aarhus, Denmark Received May 1985, final version received February 1986
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