Robust estimations from distribution structures: I. Mean

Tuobang Li

No e8mw2, OSF Preprints from Center for Open Science

Abstract: As the most fundamental problem in statistics, robust location estimation has many prominent solutions, such as the trimmed mean, Winsorized mean, Hodges–Lehmann estimator, Huber M -estimator, and median of means. Recent studies suggest that their maximum biases concerning the mean can be quite different, but the underlying mechanisms largely remain unclear. This study exploited a semiparametric method to classify distributions by the asymptotic orderliness of quantile combinations with varying breakdown points, showing their interrelations and connections to parametric distributions. Further deductions explain why the Winsorized mean typically has smaller biases compared to the trimmed mean; two sequences of semiparametric robust mean estimators emerge, particularly highlighting the superiority of the median Hodges–Lehmann mean

Date: 2024-02-15
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Persistent link: https://EconPapers.repec.org/RePEc:osf:osfxxx:e8mw2

DOI: 10.31219/osf.io/e8mw2

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