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International Conference on Statistics, Combinatorics and Related Areas and the Eighth International Conference of Forum for Interdisciplinary Mathematics
December 19-21, 2001
School of Mathematics and Applied Statistics, University of Wollongong
Wollongong, NSW, Australia

Organizers
Satya N. Mishra (University of South Alabama), Chandra M. Gulati (University of Wollongong)

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Asymptotic Quasi-likelihood Based on Kernel Smoothing
by
Yan-Xia Lin
School of mathematics and Applied Statistics, University of Wollongong, Australia
Coauthors: Song Xi Chen (Department of Statistics and Applied Probability, National University of, Singapore)

Consider the application of the asymptotic quasi-likelihood technique to q-order markovian process model
yt = m(yt-1, ..., yt-q;\theta) + \sigma(yt-1, ..., yt-q; \theta) \etat \hp0.5cm t >= 1.
This paper proves that, under fairly general conditions, the conditional higher order moments E(ykt|Ft-1) can be well estimated through Nadaraya-Watson type estimators. By taking into account this fact, in this paper we demonstrate how the procedure of asymptotic quasi-likelihood works on q-order markovian models. The study is carried out through three examples. Comparisons between the estimates of \theta obtained by the asymptotic quasi-likelihood method and the maximum likelihood method (without checking but assuming the conditional normal distribution condition is held) are also presented.

Date received: November 13, 2001


Copyright © 2001 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caid-86.