A non-traditional approach about the measurement of agents’ preference stability is introduced. This contribution focus on measuring preference consensus at different moments under the assumption of considering the following evaluations: approved, undecided and disapproved. To this aim, the concept of
preference stability measure is defined as well as a particular one, the sequential preference stability measure, taking into account any two successive time moments. Finally and in order to
highlight the good behaviour of novel measures, some properties are also provided.
