More broadly, however, U.S. investors are worried that China‘s deceleration will infect emerging market economies and the U.S. „China accounts for more than 15 percent of the world’s growth, so if they slow down it’s a problem, especially emerging markets,“ said Alan Valdes, vice president of trading at DME Securities. „Emerging markets buy a lot of goods from the U.S., and if you see those countries continue to get hit, that will spill over to U.S. multinationals, which could lead to job layoffs here in the States.“