Unlike the U.S. each country in the EuroZone have their own economic issue. While some may say that each state is like a "country" (Texas is one that can still be its own country or break up to 4 states if needed in the Texas constitution I believe) each has their own law but still have federal law.
The EuroZone is not like that. While the "money" is the Euro, each country is doing their own things and try to follow the EuroZone standard. We see country like Italy and Greece having major issue with their economy and thus causing problem while IN the EuroZone, not sure how they are going to fix this one.
Heh, recent article regarding Greece's referendum on the Eurozone have made China balk on helping. I remember recent article that China is gonna hold on to its cash cause of its own economy woes (i.e. housing bubble and banking restriction etc etc)