I am not sure how many people realize that stakes at these negotiations are asymmetric. If EU gives in to Greece's demands, then another EU nation might want to

I am not sure how many people realize that stakes at these negotiations are asymmetric. If EU gives in to Greece's demands, then another EU nation might want to pull off something similar. So in a way a EU's loss would be amplified because of precedence set by this example. Furthermore, Greece could come back again for help because it could not fulfill the promises it makes after the current renegotiations (assuming the went through). In game theory's speak, someone's loss does not equal to someone's gain, which is means non-zero sum (https://en.wikipedia.org/wiki/Game_theory#Zero-sum_.2F_Non-zero-sum https://en.wikipedia.org/wiki/Game_theory#Zero-sum_.2F_Non-z...).