In a surprise move, Brazil's central bank cuts its benchmark interest rate by a...Aug. 31, 2011 8:06 PM ETBy: David Yelle, SA News Editor5 Comments In a surprise move, Brazil's central bank cuts its benchmark interest rate by a half-percentage-point to 12.0%, citing "substantial deterioration" in growth outlooks for major economies. Market expectations had been for no change. Recommended For YouTrending AnalysisTrending News