"This is what is on my mind," Weidmann said. "That is, how can you maintain that pressure to act?"
"All measures that only provide financing can only buy time, the (crisis) causes can only be addressed by the politicians in those countries," he added.
At the same event Weidmann was speaking at, the head of Europe's rescue fund, Klaus Regling, defended Greece's achievements in slashing its budget and lowering labor costs. He said Greece's adjustment program is already tougher than most comparable previous IMF programs.
Juergen Baetz can be reached on Twitter at http://www.twitter.com/jbaetz
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