This would be no different, in reality, to the capital controls used in Cyprus, which effectively created two different Euros, if not in name then in practice. This is a major issue for currency every where. They tried to create a pan European currency back in the late 1800s and it failed, because individual nation state interests do not align with everyone else's, and a lack of financial control by the smaller unit means it can not control its own destiny. In fairness, the Greeks did not create this mess, any more than the German taxpayers expected to bail them out. The toxic combination of bankers and power hungry cash hungry bureaucrats created the mess. Yes, the people of Greece demanded more free stuff, as do people everywhere since the advent of socialist states (each and every of which has had a negative effect on prosperity), but had the bankers not been bailed out, letting the corruption continue, they would have been forced to live within their means, as they would now, if they were to leave the eurozone.
I've got a lot of respect for you Allen. It's been demonstrated again and again that you have a sound knowledge of finance and are capable of doing things with numbers that confuse a lot of people. You have a good head for business and understand a great many things that area great benefit to those who chose to pay attention.
However, and I'm going to try and say this without sounding like I'm actually making a personal attack, this statement makes you sound like a crazy person. Keynsian economics is dangerous, lethal and not in the best interests of anyone. Government doesnot need to spend money to create jobs. They need to keep the hell out of the way while the jobs are created by market need. Everything that the government does costs a damn site more than if it was done by interested private parties for their own profit.
It's not how much, or how it's spent, but who it's spent by. When it's spent by "borrowing" from peoples futures, ie government borrowing on the promise of future tax returns, it's bad. When it's spent by productive people with the inclination to profit, it gets used wisely and effectively on projects which are of actual benefit.
Socialism does that. Sorry, I know, politics, but when someones politics affects their economic theory to the point of putting them beyond reason and sanity, it becomes relevant. Nowt personal, mind, just, y'know. I know you're smart, so why on earth would you come out with these things?????
For what it's worth, Greece can save itself, simply. If the Greek people leave the Euro, recreate the Drachma (I'm not advocating they adopt bitcoin en masse) and learn to live within their means (those means being determined by free market valuations of their produce and service) they can survive and even thrive. They don't have the big industrial base of Germany, but they do have a load of gorgeous places and rich history that people like to visit. They can produce food enough to feed themselves and trade. They can thrive again, like they have done at times in the past, but only if they learn fast and jump free from the yolk of socialism which they desperately cling to now.
I sincerely hope that they do, because I have some Greek heritage I love Greece, I love the Greek people and I want to see them recover their dignity 