According to Volker Wieland a grexit that is the decision of the Greek government to leave the European Union does not seem likely. However, the risk of an "accident" has grown. "The ECB cannot put up with everything," said Volker Wieland. There might occur a situation when the ECB cannot help but stop the Emergency Liquidity Assistance (ELA) if it does not want to lose credibility.
"Die EZB kann nicht alles mit sich machen lassen" (Börsen-Zeitung)