This note provides two necessary and sufficient conditions for the relative interior of the core (and the base … greater than the minimum no-blocking payoff. Such conditions imply an intuitive method in proving core existence, they also … imply results on the sensitivity of the base polyhedron and the core. …

coalitional deviations. In the cooperative tradition, we first extend the notion of Core, taking into account the information a … single one. Secondly, we study the stability of Core mechanisms to secession proposals in simple noncooperative games. The … two different stability analyses, normative and strategic, tend to give support to the more natural extension of the Core …

economy, but unlike the weak fine core and the set of fine value allocations, it may also contain allocations which are not …

strong sequential core of such an economy consists of those consumption streams that can be improved upon by no coalition at … no moment of time. Non-emptiness of the strong sequential core is established given a high enough discount factor …. Moreover, sufficient conditions are given under which the strong sequential core contains only time and history independent …

diversification." We show that this implies that the core of the capacity is non-empty. The converse holds under concavity of the … equivalent to non-empty core. In the expected utility model, all these notions of diversification are equivalent and are …