answers have to be selected based on multiple objective functions since motives of all interlocutors i ∈ I shall be satisfied; f i : Ω → R. For capturing the aspect of equal motive satisfaction, the potential of answers has to be represented absolutely and relatively.
the performance of an answer in satisfying motives of an interlocutor i ∈ I is combined with its performance in satisfying motives of counterparts −i ∈ I; max{f i,-i (x)|x ∈ Ω}.