It's basically predicated on the idea that the people elected to lead the great economies of the world aren't fucking morons, despite what the commenters at
Here it is:
When strategy is mistaken for stupidity, the curious case of eurozone politicians
As they note:
"acting like a maniac, provided one doesn’t get killed, may be optimal in order to ultimately get one’s way."
Meaning, behind all the apparent stupidity of inter-Euro politics there is usually a clever plan. You just don't see it because you don't understand what it is each politican is trying to accomplish. Rather like dealing with drunken Irishmen.
(Note: you can still assume that there is no clever plan in festering shitholes like Hungary.)