American Airlines Group IncAAL.O fell 7.7 percent afterthe No.1 U.S. airline cut its forecast for fourth-quarter growthin unit revenue, a closely watched performance metric. Beijing said the talks with Washington were extensive andhelped establish a foundation for resolution, but gave nodetails at the end of their three-day meeting aimed at resolvinga tariff dispute that has battered financial markets. urn:newsml:reuters.com:*:nL3N1ZA03L Oil prices also edged lower on lack of any clear resolutionfrom the talks, while weak factory-gate inflation data fromChina and worse-than-expected industrial figures in Francerekindled worries about global growth.