Global stocks fall, copper hits six-year low on China worries

Global stock indexes fell on Friday as copper slid to a six-year low on increasing worries over slower economic growth in China and a glut in supply. Weaker-than-expected October retail sales weighed on U.S. stocks in early trading, while U.S. Treasuries yields fell to their lowest in a week after the retail data. Oil prices extended recent losses as supply concerns persisted.