One economist. We'll obviously have different opinions on this, but I think the fact the Euro survived such a crisis has proven its strength. Remember that the pound has been through similar.

We're two years on from when that article was written, an in a different environment now. Bear in mind that Euroscepticism is often about reform from within. For instance, Krugman cites the populist revolt in Poland, but almost everyone in that country still wants to remain in the EU.