Youre thinking inside the box. The EU is just an organisation set up to administer an international treaty agreement between several nations. They are all sovereign states and there is nothing to prevent any or all of them acting independantly or together.
True.
As I see it Greece can be subsidised for the next decade or so by any of the following:
1) The whole EU. But Lisbon doesn't allow this, and all 27 won't agree.
2) The Eurozone. But Lisbon doesn't allow this and all 16 won't agree.
3) By a "coalition of the willing" from within the Eurozone. Presumably Germany and France. Perhaps with others also (but not Spain, Portugal, Italy, Ireland and probably not Belgium).
4) By countries outside the EU.
I take it (4) just isn't going to happen. The mechanism we have is the IMF, but that doesn't do subsidy - rather it is devaluation plus austerity plus loans.
So we're left with a Franco-German subsidy programme. The project is comparable in scale to the reunification of Germany with the subsidies to the former DDR. This was carried out through what were generally boom years and with a lot of support from Germans in the former West Germany. Additionally there was EEC/EU support. Now problems include the following:
1) Could German and French politicians sell such a programme to their own people? It would mean very substantial changes in both countries, including big tax rises and spending cuts.
2) Could the German and French economies withstand the strain? Both are better than many in Europe though neither is within the EU guidelines for deficit to GDP.
3) Would it work? If Greece is subsidised the country that then looks most vulnerable is Portugal. The markets would test the strength of Portugal and it is likely that Portugal would just replace Greece as the weakest link.
If France and Germany want to subsidise Greece then great - if it works (big if) it would help the world. But I don't think they can sell it to their people, I think it risks taking them with it (though in fairness I don't rank their chances high whatever they do) and I really doubt it would do more than shift the spotlight to Portugal.
My view is that the Euro (and the EU) is failing. The challenge for the UK is to insulate itself as far as is possible. Within this context Conservative Euro-scepticism is important, as is the statement that the relationship with the USA is an "unbreakable alliance". With our own currency, with financial markets somewhat pacified by the realisation that the UK has now abandoned its recent policies of politically motivated financial illiteracy
and with US support the UK can hope to remain solvent. But the Eurozone has had it.