Copper Falls for Sixth Day as S&P Revises U.S. Rating Outlook

Copper fell for a sixth day in New York, the longest streak since June, after Standard & Poor'sput a "negative" outlook on the AAA credit rating for the U.S., the second-largest consumer of the metal. S&P cited a "material risk" that U.S. leaders will fail to deal with rising budget deficits and debt. Equity benchmarks in the country fell, and the difference in yields between 2- and 30-year

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