The euro zone needs to press ahead with structural reforms and closer integration, including an euro zone finance ministry, to deliver sustainable growth, the heads of the French and German central banks wrote in a German newspaper on Monday. In a guest article for the Sueddeutsche Zeitung entitled "Europe at a crossroads", they said the European Central Bank (ECB) was not in a position to create sustainable long-term growth for the 19-country single currency bloc. The ECB has undershot its 2-percent inflation target for three straight years and is unlikely to return to it to for years to come given low oil prices, ... (full story)