This is interesting:

BRUSSELS (Reuters) – The European Union must consolidate its representation in the International Monetary Fund to be able to pull its weight in shaping global economic policy, the EU’s top economic official said on Monday. “I consider it crucial for the European Union to consolidate its voice in the global institutions, most importantly in the IMF,” Economic and Monetary Affairs Commissioner Joaquin Almunia said in a speech. “Too often the EU’s voice on key issues at the global level is fractured and we fail to influence policy debates as effectively as we might,” he said.The 27-nation bloc is the world’s biggest economic power, Almunia said, surpassing the United States in terms of population, gross domestic product and trade flows.
The euro, used in 16 EU countries, is the world’s second most important currency…

The euro has also been a disaster for a good number of the countries that signed up for it, but never mind.

Hat-tip: Richard at EU Referendum, who ponders the wider implications, none of them pleasant.