Abstract
A parameter estimation problem for a one-dimensional reflected Ornstein–Uhlenbeck is considered. We assume that only the state process itself (not the local time process) is observable and the observations are made only at discrete time instants. Strong consistency and asymptotic normality are established. Our approach is of the method of moments type and is based on the explicit form of the invariant density of the process. The method is valid irrespective of the length of the time intervals between consecutive observations.
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Acknowledgments
The research work of Y. Hu is supported in part by the Simons Foundation Grant (209206) and a General Research Fund of University of Kansas, and C. Lee is supported in part by the Simons Foundation Grant (209658) and the Army Research Office (W911NF-14-1-0216). The authors would like to thank the anonymous reviewers for their valuable comments and suggestions that have much enhanced the quality of the paper.
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Hu, Y., Lee, C., Lee, M.H. et al. Parameter estimation for reflected Ornstein–Uhlenbeck processes with discrete observations. Stat Inference Stoch Process 18, 279–291 (2015). https://doi.org/10.1007/s11203-014-9112-7
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DOI: https://doi.org/10.1007/s11203-014-9112-7
Keywords
- Reflected Ornstein–Uhlenbeck processes
- Discrete time observations
- Method of moment estimator
- Strong consistency
- Asymptotic normality