Estimation of the mean of a univariate normal distribution when the variance is not known

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Abstract

We consider the problem of estimating the first k coefficients in a regression equation with k+1 variables. For this problem with known variance of innovations, the neutral Laplace weighted-average least-squares estimator was introduced in Magnus (2002). We generalize this estimator to the case where the unknown variance is estimated by least squares and find that main properties of the Laplace estimator only change marginally. Therefore we recommend the neutral Laplace estimator to be used in practice.
Original languageEnglish
Pages (from-to)277–291
Number of pages14
JournalThe Econometrics Journal
Volume8
Issue number3
DOIs
Publication statusPublished - 2005

Keywords

  • Regression
  • Laplace estimator
  • Pretest

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