Equity markets drop on China worries; U.S. oil slips

World equity indexes fell and U.S. oil prices weakened on Monday as disappointing trade data in world No. 2 economy China stoked concerns over weakening global growth. Data showed China's October exports fell for a fourth month, while imports also dropped, leaving the nation with a record high trade surplus of $61.64 billion. The United States is one of China's biggest trade partners.