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Rank-based testing in linear models with stable errors

Marc Hallin (), Yves-Caoimhin Swan, Thomas Verdebout and David Veredas ()

ULB Institutional Repository from ULB -- Universite Libre de Bruxelles

Abstract: Linear models with stable error densities are considered, and their local asymptotic normality with respect to the regression parameter is established. We use this result, combined with Le Cam's third lemma, to obtain local powers and asymptotic relative efficiencies for various classical rank tests (the regression and analysis of variance counterparts of theWilcoxon, van derWaerden and median tests) under α-stable densities with various values of the skewness parameter and tail index. The same results are used to construct new rank tests, based on 'stable scores', achieving parametric optimality at specified stable densities. A Monte Carlo study is conducted to compare their finite-sample relative performances. © American Statistical Association and Taylor & Francis 2011.

Date: 2011
Note: SCOPUS: ar.j
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Published in: Journal of nonparametric statistics (2011) v.23 n° 2,p.305-320

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