OECD chief economist: 'Growth driven by weak engines'
Global growth forecasts for 2013 and 2014 have been downgraded "significantly" after weak prospects in emerging market economies, said the OECD.
But it said global economic growth would speed up by 2015.
OECD Chief Economist Pier Carlo Padoan said most countries were entering positive growth but that it was, "driven by weak engines. Trade is faltering, investment is lagging and emerging markets are not growing as they used to be."