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- W1978214120 abstract "A onestep estimator, which is an approximation to the unconditional maximum likelihood estimator (MLE) of the coefficient matrices of a Gaussian vector autoregressive process is presented. The onestep estimator is easy to compute and can be computed using standard software. Unlike the computation of the unconditional MLE, the computation of the onestep estimator does not require any iterative optimization and the computation is numerically stable. In finite samples the onestep estimator generally has smaller mean square error than the ordinary least squares estimator. In a simple model, where the unconditional MLE can be computed, numerical investigation shows that the onestep estimator is slightly worse than the unconditional MLE in terms of mean square error but superior to the ordinary least squares estimator. The limiting distribution of the onestep estimator for processes with some unit roots is derived." @default.
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- W1978214120 date "2009-05-01" @default.
- W1978214120 modified "2023-09-24" @default.
- W1978214120 title "A likelihood based estimator for vector autoregressive processes" @default.
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- W1978214120 doi "https://doi.org/10.1016/j.stamet.2008.11.002" @default.
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