Please use this identifier to cite or link to this item: http://hdl.handle.net/10525/1772

 Title: Quasi-Likelihood Estimation for Ornstein-Uhlenbeck Diffusion Observed at Random Time Points Authors: Adès, MichelDion, Jean-PierreMacGibbon, Brenda Keywords: Diffusion ProcessesOrnstein-UhlenbeckQuasi-LikelihoodPoisson Arrivals Issue Date: 2005 Publisher: Institute of Mathematics and Informatics Bulgarian Academy of Sciences Citation: Serdica Mathematical Journal, Vol. 31, No 4, (2005), 291p-308p Abstract: In this paper, we study the quasi-likelihood estimator of the drift parameter θ in the Ornstein-Uhlenbeck diffusion process, when the process is observed at random time points, which are assumed to be unobservable. These time points are arrival times of a Poisson process with known rate. The asymptotic properties of the quasi-likelihood estimator (QLE) of θ, as well as those of its approximations are also elucidated. An extensive simulation study of these estimators is also performed. As a corollary to this work, we obtain the quasi-likelihood estimator iteratively in the deterministic framework with non-equidistant time points. Description: 2000 Mathematics Subject Classification: 60J60, 62M99. URI: http://hdl.handle.net/10525/1772 ISSN: 1310-6600 Appears in Collections: Volume 31 Number 4

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