This paper presents a characterization of the non-emptiness of the intersec
tion between the imputation set and the Weber set. Tools from non-cooperati
ve zero-sum finite games are used. We assign a matrix game to any cooperati
ve game and the sign of the value of this matrix game is used for the chara
cterization mentioned above. The cases of two or three players are discusse
d. Moreover, bounds and some particular cases for this value are studied.