Global shares rise on Apple, Bernanke's comments

NEW YORK (Reuters) - Global shares jumped on Wednesday after stellar earnings from Apple Inc bolstered optimism over corporate earnings and Federal Reserve Chairman Ben Bernanke said the central bank was prepared to do more to aid the U.S. economy if necessary. The dollar slipped and U.S. stocks extended gains in late trade after Bernanke said the Fed "would not hesitate" to launch another round ...