In this Wednesday, Jan. 2, 2013, photo, traders work on the floor at the New York Stock Exchange in New York. A positive start to U.S. corporate earnings season and a sharp improvement in China's ... more 
In this Wednesday, Jan. 2, 2013, photo, traders work on the floor at the New York Stock Exchange in New York. A positive start to U.S. corporate earnings season and a sharp improvement in China's monthly trade helped boost world stock markets Thursday Jan. 10, 2013. (AP Photo/Seth Wenig) less 
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Associated Press | Photo By Seth Wenig
Thu, Jan 10, 2013 10:31 AM EST