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The paper on Dynamic dependence ordering for Archimedean copulas and distorted copulas should appear soon in Kybernetika.This paper proposes a general framework to compare the strength of the dependence in survival models, as time changes, i.e. given remaining lifetimes X, to compare the dependence of X given X&#62;t, and X given X&#62;s, where s&#62;t. More precisely, analytical results will be obtained in the case the survival copula of X is either Archimedean or a distorted copula. The case of a frailty based model will also be discussed in details.