Abstract
This paper focuses on the efficient estimation problem of a first-order Periodic Integer-Valued Autoregressive () Model. The Local Asymptotic Normality (LAN), the Local Asymptotic Quadratic (LAQ) and the Local Asymptotic Linearity property satisfied by its central sequence are established. By using these results, we construct efficient estimators for the parameters in the parametric case. The consistency property of these efficient estimations are shown via intensive simulation studied. Moreover, the performance of these efficient estimations, over the Conditional Maximum Likelihood (CML), the Yule-Walker (YW) and the Conditional Least Squares (CLS) estimations, is also shown via intensive simulation studied and an application on real data set.
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