"...Meanwhile, copper for March delivery rose 0.5% on Friday to close the week at USD3.312 a pound. Earlier in the session, prices of the industrial metal rallied to USD3.319 a pound, the highest since November 1, amid growing optimism over the health of the U.S. economy. On the week, Comex copper prices advanced 1.93%, the fourth consecutive weekly advance...." http://www.investing.com/news/commodities-news/gold---silver---copper-futures---weekly-outlook:-december-16---20-256310