Mario Draghi, the governor of the Bank of Italy, has said he had nothing to do with controversial transactions involving Greek government debt.

With the spotlight shining brightly on Greece's fiscal plight, top European officials, including Angela Merkel, the German chancellor, have attacked Goldman Sachs for a series of transactions completed almost a decade ago. Officials accuse the investment bank of helping massage the Greek government's national debt ratios through the use of derivatives.

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