"There was a lot of irregular stuff going on within the banking system, and of course ... there was an international financial crisis, " Haarde said.

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"Defending the integrity of the world's financial system and avoiding its mismanagement for irregular purposes are crucial features to peace, " he said.

CNN: Finance ministers urge vigilance

Dr Mozer has found that, even if he keeps an irregular schedule, it does not prevent the system from making intelligent decisions.

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