  This paper explores the impact of perturbations of copulas on the dependence
properties of the Markov chains they generate. We consider Markov chains
generated by perturbed copulas. Results are provided for the mixing
coefficients $\beta_n$, $\psi_n$ and $\phi_n$. Several results are provided on
mixing for the considered perturbations. New copula functions are provided in
connection with perturbations of variables that induce other types of
perturbation of copulas not considered in the literature.
