) coalitional equilibrium, describe a (cooperative) partition form game. A coalition is core-stable if the core of a suitable …We propose a semi-cooperative game theoretic approach to check whether a given coalition is stable in a Bayesian game … possible explanation for cartels' structures (not) observed in practice. -- auctions ; Bayesian game ; collusion ; core …

on the one hand and the core property of an allocation on the other. In particular we show that it is an inhomogeneous … distribution of cost shares that motivates some coalition of agents to separate and to block an initially given Pareto optimal … allocation which can be interpreted as the outcome of a negotiation process when all agents form a grand coalition …

, which contradicts most theories of choice such as expected utility but is consistent with a theory of responsibility … pattern that is also consistent with this theory and entails substantial allocative consequences. …

repeated game setting. We show that partial tax coordination is more likely to prevail if the number of regions in a coalition …

; coalition formation ; endogenous institutions …

members of the coalition group for equilibrium payoffs and welfare effects. In this analysis we also distinguishing between … coalition groups with and without side payments. Overall, coalition groups tend to perform well for the members of the coalition … group in comparison to fully decentralized negotiations, particularly if the objectives of the members of the coalition …

international agreement on emission reductions. We consider a situation where a coalition of countries does not cooperate on …. The equilibrium size of such a coalition, as well as equilibrium emissions, depends on the distribution across countries … of countries will reduce (or leave unchanged) the equilibrium coalition size. However, the effect of such an increase in …

climate damage asymmetry tends to discourage cooperation in the grand coalition. The effects of fuel-demand asymmetry depend … on fossil fuel abundance. If fuel is very abundant, the grand coalition fails to be stable independent of the degree of … higher degrees of asymmetry stabilize the grand coalition. …