Chicago Fed factory index falls again in July Thursday September 11, 12:01 pm ET NEW YORK, Sept 11 (Reuters) - The Chicago Federal Reserve Bank said on Thursday its Midwest manufacturing index fell for the sixth straight month in July, even as national factory output recovered. The Chicago Fed's manufacturing index fell 0.3 percent to 107.5 in July from a revised 107.8 in June. "While July marked the third consecutive monthly increase in factory output for the nation, it was the sixth consecutive monthly decline in factory output in Midwest manufacturing production," said Chicago Fed senior economist William Strauss. The...