We propose a new solution concept which characterizes stable agreement
s in cooperative games. Although it is a refinement of an earlier solu
tion concept introduced by McKelvey, Ordeshook and Winer [6], there ar
e some similitudes with other solutions of cooperative games. The new
concept may be defined both for transferable and non-transferable util
ity games and it is shown that it exists for very large classes of gam
es.