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Local Robust Estimation of Pareto-Type Tails with Random Right Censoring

Authors :
Dierckx, Goedele
Goegebeur, Yuri
Guillou, Armelle
Source :
Sankhya- Series A; 20240101, Issue: Preprints p1-39, 39p
Publication Year :
2024

Abstract

We propose a nonparametric robust estimator for the tail index of a conditional Pareto-type distribution in the presence of censoring and random covariates. The censored distribution is also of Pareto-type and the index is estimated locally within a narrow neighbourhood of the point of interest in the covariate space using the minimum density power divergence method. The main asymptotic properties of our robust estimator are derived under mild regularity conditions and its finite sample performance is illustrated on a small simulation study. A real data example is included to illustrate the practical applicability of the estimator.

Details

Language :
English
ISSN :
0976836X and 09768378
Issue :
Preprints
Database :
Supplemental Index
Journal :
Sankhya- Series A
Publication Type :
Periodical
Accession number :
ejs50262849
Full Text :
https://doi.org/10.1007/s13171-019-00169-0