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On the restricted almost unbiased Liu estimator in the Logistic regression model

Statistics Theory 2017-07-25 v1 Statistics Theory

Abstract

It is known that when the multicollinearity exists in the logistic regression model, variance of maximum likelihood estimator is unstable. As a remedy, in the context of biased shrinkage ridge estimation, Chang (2015) introduced an almost unbiased Liu estimator in the logistic regression model. Making use of his approach, when some prior knowledge in the form of linear restrictions are also available, we introduce a restricted almost unbiased Liu estimator in the logistic regression model. Statistical properties of this newly defined estimator are derived and some comparison result are also provided in the form of theorems. A Monte Carlo simulation study along with a real data example are given to investigate the performance of this estimator.

Keywords

Cite

@article{arxiv.1707.07158,
  title  = {On the restricted almost unbiased Liu estimator in the Logistic regression model},
  author = {Jibo Wu and Yasin Asar and M. Arashi},
  journal= {arXiv preprint arXiv:1707.07158},
  year   = {2017}
}

Comments

15 pages, 1 Figure, 9 Tables