, hence agreements must be stable against both types of deviations. The appropriate extension of the classical core concept …, the Sustainable Core, is defined for this new setup to test the stability of allocations in such a complex environment. A … achieved by choosing an element in the Sustainable Core. -- …

axiomatization of the Shapley value that the requirements of Core Compatibility, Equal Treatment Property and Strong Monotonicity are …

staying with the original outcome with the risk of deviating. Employing this idea to the core leads to a new concept that we … call the risk-based core. We introduce this concept and discuss its properties. We find an inclusion relation between cores … yields many of the familiar inclusion relations as corollaries, while the inclusion of the optimistic core in the optimistic …

dampens cooperation, though only slightly. Surprisingly, externalities are immaterial. If we control for beliefs, they even … we add beliefs as a control variable, we only find that externalities enhance cooperation, even if gains from collusion …

dampens cooperation, though only slightly. Surprisingly, externalities are immaterial. If we control for beliefs, they even … we add beliefs as a control variable, we only find that externalities enhance cooperation, even if gains from collusion … expected. -- Oligopoly ; Collusion ; experiment ; Uncertainty ; negative externalities ; prisoner's dilemma …