The world's top economies may agree to set an ambitious target for faster global growth at a weekend meeting in Sydney, where major central banks are also being urged to coordinate policies to avoid "surprises" that could further roil emerging markets. Opening the two-day meeting of the Group of 20 finance ministers and central bankers on Saturday, Australian Treasurer Joe Hockey said support was building for setting a firm goal for growth. "I have a great sense of hope that this G20 meeting will be able to lay down a real and tangible framework for an increase in the growth of the global economy over the next five ... (full story)