“…Defined as the ratio of the number of winning coalitions to the total number of all conceivable coalitions, the Coleman measure equals the probability of a decision in favor of a change in the status quo, provided that all coalitions are equally probable. 2 This assumption is equivalent to the binomial model of voting in which each vote has an equal probability of being for or against 1 See, for example, Tsebelis (1994Tsebelis ( , 1995, Steunenberg (1994), Crombez (1996), Tsebelis (1996, 1999), Moser (1996Moser ( , 1997, Laruelle (1997), Hubschmid and Moser (1997), Thomson and Hosli (2006), and Napel and Widgrén (2006). 2 By 'coalition' we mean the set of members voting affirmatively, i.e.…”