Abstract
We study the local linear estimator for the drift coefficient of stochastic differential equations driven by α-stable Lévy motions observed at discrete instants. Under regular conditions, we derive the weak consistency and central limit theorem of the estimator. Compared with Nadaraya-Watson estimator, the local linear estimator has a bias reduction whether the kernel function is symmetric or not under different schemes. A simulation study demonstrates that the local linear estimator performs better than Nadaraya-Watson estimator, especially on the boundary.
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Lin, Z., Song, Y. & Yi, J. Local linear estimator for stochastic differential equations driven by α-stable Lévy motions. Sci. China Math. 57, 609–626 (2014). https://doi.org/10.1007/s11425-013-4628-7
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DOI: https://doi.org/10.1007/s11425-013-4628-7
Keywords
- local linear estimator
- stable Lévy motion
- drift coefficient
- bias reduction
- consistency
- central limit theorem