Probabilistic measures of a priori voting power are useful tools to assess actors' influence on collective decision-making either for the purpose of designing a voting organ or to model particular policy cases. This paper makes an attempt to reduce a dynamic voting process into a cooperative...

The message of this paper is that value of a coalition is power. This coincides with the view that coalitions do not have preferences, but merely represent the preferences of their members. Implications are discussed with the respect to (a) the hypothesis that power indices cannot explain...