In this article, the problem of interest is testing the conditional heteroscedasticity of Poisson autoregressive model. We construct a non parametric test statistic based on empirical likelihood method. The asymptotic distribution of the proposed statistic is derived and its finite-sample property is examined through Monte Carlo simulations. The simulation results show that the proposed method is good for practical use.
机构:
Chinese Acad Sci, Inst Appl Math, Beijing, Peoples R ChinaChinese Acad Sci, Inst Appl Math, Beijing, Peoples R China
Zhu, Ke
Li, Wai Keung
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Univ Hong Kong, Dept Stat & Actuarial Sci, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R ChinaChinese Acad Sci, Inst Appl Math, Beijing, Peoples R China
Li, Wai Keung
Yu, Philip L. H.
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Univ Hong Kong, Dept Stat & Actuarial Sci, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R ChinaChinese Acad Sci, Inst Appl Math, Beijing, Peoples R China