Jackknife estimation with a unit root
Jackknife estimation with a unit root
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DOI:
10.1016/j.spl.2013.03.016
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发表时间:
2013-07-01
影响因子:
0.8
通讯作者:
Kyriacou, Maria
中科院分区:
文献类型:
--
作者:
Chambers, Marcus J.;Kyriacou, Maria
We study jackknife estimators in a first-order autoregression with a unit root. Non-overlapping sub-sample estimators have different limit distributions, so the jackknife does not fully eliminate first-order bias. We therefore derive explicit limit distributions of the numerator and denominator to calculate the expectations that determine optimal jackknife weights. Simulations show that the resulting jackknife estimator produces substantial reductions in bias and RMSE. (c) 2013 Elsevier B.V. All rights reserved.