Academic Journal

Nonparametric estimator of the tail dependence coefficient: balancing bias and variance.

التفاصيل البيبلوغرافية
العنوان: Nonparametric estimator of the tail dependence coefficient: balancing bias and variance.
المؤلفون: Garcin, Matthieu1 (AUTHOR) matthieu.garcin@m4x.org, Nicolas, Maxime L. D.2 (AUTHOR)
المصدر: Statistical Papers. Oct2024, Vol. 65 Issue 8, p4875-4913. 39p.
مصطلحات موضوعية: *ALGORITHMS, NONPARAMETRIC estimation, CENSORSHIP
مستخلص: A theoretical expression is derived for the mean squared error of a nonparametric estimator of the tail dependence coefficient, depending on a threshold that defines which rank delimits the tails of a distribution. We propose a new method to optimally select this threshold. It combines the theoretical mean squared error of the estimator with a parametric estimation of the copula linking observations in the tails. Using simulations, we compare this semiparametric method with other approaches proposed in the literature, including the plateau-finding algorithm. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Business Source Index
الوصف
تدمد:09325026
DOI:10.1007/s00362-024-01582-w