Krintas said he was optimistic that whoever wins will respect public opinion, which overwhelmingly wants to keep the euro.
"When faith in a system has been shaken, then any event can act as a catalyst so that the weak remaining faith evaporates and events take the form of an avalanche," he said.
"I personally believe that because a very high percentage of Greeks want to keep using the euro ... Greek politicians will think very carefully before flying in the face of public opinion."
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