Are power indices a valid measure to quantify changes in influence in the EU's Council of Ministers, following the re-weighting of votes in the Treaty of Nice‪?‬

I shall firstly summarise M&F′s study and results in order to allow for an easier assessment of the situation. Subsequently, I shall depict the arguments against the application of power indices to an organisation such as the European Union and put them into perspective. In the third part of this essay, I shall then attempt to show that methods proposed as alternatives to power indices do not, in fact, offer any workable alternatives when analysing the EU-Council after enlargement, and conclude that power indices can provide an important approximation of a priori power distribution and do carry relevance in assessing the Council and especially in understanding the behaviour of actors when deciding on issues like the re-weighting of votes in the Nice Treaty.