When the Group of 20 finance ministers and central bankers meet on Friday in Turkey, China's market turmoil is likely to be the biggest problem they do nothing about. Slower growth in China and rising market volatility have boosted the risks to the global economy, staff of the International Monetary Fund warned on Wednesday, citing a mix of potential dangers such as depreciating emerging market currencies and tumbling commodity prices. But the G20 is unlikely to come up with any concrete measures designed to address the spillover from the turmoil in the world's second-largest economy, or to call on Beijing to address ... (full story)