A brief outline of the latest version of the Markedness Model (MM), the main theoretical innovation being that MM is now anchored in Elster’s Rational Actor-theory. The key tenets of MM, which was developed to account for language choices in multilingual situations, are (i) that members of a speech community have the capacity to associate specific codes with specific situations (so that, for each situation, one code is 'stored' as the 'unmarked choice'), and (ii) that they may exploit these associations creatively to re-negotiate the power balance within a situation (via so-called marked choices).