Testing equality between two-sample dependence structure using Bernstein polynomials

03/04/2023

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by   Guanjie Lyu, et al.

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Tests of equality of copulas between two samples are introduced and studied using the empirical Bernstein copula process. Three statistics are proposed and their asymptotic properties are established. Besides, a subsampling Bernstein version method is investigated and compared with multiplier bootstrap. Simulation study showed that the Bernstein tests outperform the tests based on the empirical copula.