Greek Lessons for the World Economy:
"Deep down, the crisis is yet another manifestation of what I call “the political trilemma of the world economy”: economic globalization, political democracy, and the nation-state are mutually irreconcilable. We can have at most two at one time. Democracy is compatible with national sovereignty only if we restrict globalization. If we push for globalization while retaining the nation-state, we must jettison democracy. And if we want democracy along with globalization, we must shove the nation-state aside and strive for greater international governance."
P.S. Dicussion in Economist's view Europe's "Political Trilemma":