Deutsche Börse has rebuffed growing criticism of its landmark merger with NYSE Euronext claiming the controversial deal, which is currently being investigated by Europe's antitrust authorities, will benefit Europe by increasing liquidity and lowering the cost of raising debt and equity.

In an extensive email statement, Deutsche Börse said: "The transaction will provide significant benefits for customers, issuers, and the European economy as a whole -- and many of these benefits will accrue to stakeholders directly.