legislation of the European Union adopted under its codecision procedure. In contrast to studies which use conventional power …

been more and more substituted by majority voting in order to speed up decision-making processes in a Union of 27 … member state threatens to leave the Union. By using cheap talk a member state may increase the credibility of its outside …

? Under an intuitive condition linking power structures in the dynamic setting and at the commitment stage, the answer is … equilibrium without commitment. The condition is also necessary: when it fails, as in the case of a single time-inconsistent agent …, commitment is valuable for some payoffs. We apply our result to explain inefficient collective decisions in the contexts of …

of players. The social structure is utilized to refine the core of the game. For every coalition the relative strength of … a player within that coalition is induced by the social structure and is measured by a power function. We call a payoff …