On the robustness of imprecise probability methods

Imprecise probability methods are often claimed to be robust, or more robust than conventional methods. In particular, the higher robustness of the resulting methods seems to be the principal argument support-ing the imprecise probability approach to statistics over the Bayesian one. The goal of the present paper is to investigate the robustness of imprecise probabil-ity methods, and in particular to clarify the termi-nology used to describe this fundamental issue of the imprecise probability approach