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We consider a general nonlinear autoregression of order<jats:italic>p<\/jats:italic>(AR(<jats:italic>p<\/jats:italic>)) with the conditional variance specified as a general nonlinear first-order generalized autoregressive conditional heteroskedasticity (GARCH(1,1)) model. We do not require the rescaled errors to be independent, but instead only to form a stationary and ergodic martingale difference sequence. Strong consistency and asymptotic normality of the global Gaussian quasi-maximum likelihood (QML) estimator are established under conditions comparable to those recently used in the corresponding linear case. To the best of our knowledge, this paper provides the first results on consistency and asymptotic normality of the QML estimator in nonlinear autoregressive models with GARCH errors.<\/jats:p>","DOI":"10.1017\/s0266466611000041","type":"journal-article","created":{"date-parts":[[2011,5,31]],"date-time":"2011-05-31T12:50:03Z","timestamp":1306846203000},"page":"1236-1278","source":"Crossref","is-referenced-by-count":40,"title":["PARAMETER ESTIMATION IN NONLINEAR AR\u2013GARCH MODELS"],"prefix":"10.1017","volume":"27","author":[{"given":"Mika","family":"Meitz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pentti","family":"Saikkonen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2011,5,31]]},"reference":[{"key":"S0266466611000041_ref21","doi-asserted-by":"publisher","DOI":"10.1017\/S0266466605050474"},{"key":"S0266466611000041_ref33","doi-asserted-by":"publisher","DOI":"10.2307\/2171862"},{"key":"S0266466611000041_ref37","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-9892.2007.00562.x"},{"key":"S0266466611000041_ref18","first-page":"61","article-title":"Smooth-transition GARCH models","volume":"3","author":"Gonz\u00e1lez-Rivera","year":"1998","journal-title":"Studies in Nonlinear Dynamics and Econometrics"},{"key":"S0266466611000041_ref36","doi-asserted-by":"crossref","unstructured":"Meitz M. & Saikkonen P. 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