Bounded Estimation in the Presence of Nuisance Parameters

Luca Greco () and Laura Ventura ()
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Luca Greco: Department of Statistics
Laura Ventura: Department of Statistics

Statistical Methods & Applications, 2006, vol. 15, issue 1, No 3, 27-36

Abstract: Abstract The aim of this paper is to extend in a natural fashion the results on the treatment of nuisance parameters from the profile likelihood theory to the field of robust statistics. Similarly to what happens when there are no nuisance parameters, the attempt is to derive a bounded estimating function for a parameter of interest in the presence of nuisance parameters. The proposed method is based on a classical truncation argument of the theory of robustness applied to a generalized profile score function. By means of comparative studies, we show that this robust procedure for inference in the presence of a nuisance parameter can be used successfully in a parametric setting.

Keywords: B-robustness; Influence function; M-estimator; Profile and generalized profile likelihood (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1007/s10260-006-0001-0

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