A gauge of U.S. business prices fell in October, the latest sign of low inflation amid cheap gasoline and a strong dollar. The producer-price index, which measures the prices companies receive for goods and services, decreased 0.4% in October , the Labor Department said Friday. Excluding the volatile food and energy categories, so-called core prices were down 0.3% from the prior month. Economists surveyed by The Wall Street Journal had expected overall prices would rise 0.2% and core prices would rise 0.1%. Overall producer prices decreased 1.6% in October from a year earlier, the 10th straight year-over-year decline and the biggest annual fall since the government started publishing the series in 2009. Core prices were up 0.4% from a year earlier. The index measures prices from the perspective of the seller, but generally tracks closely […]