Ling, Shiqing; Li, Dong - In: Biometrika 95 (2008) 1, pp. 257-263
We investigate the nonstationary double <sc>ar(1)</sc> model, <disp-formula><graphic xlink:href="asm084ueq1.gif" xmlns:xlink="http://www.w3.org/1999/xlink"/></disp-formula> where ω 0, α 0, the η<sub>t</sub> are independent standard normal random variables and Elog |φ + η<sub>t</sub>√α| ⩾ 0. We show that the maximum likelihood estimator of (φ, α) is consistent and asymptotically normal. Combination of this result with...
