Ren Xuefeng, vice-mayor of North China's Tianjin, speaks at the closing ceremony of the 2013 Summer Davos Forum in Dalian, Northeast China's Liaoning province, Sept 13, 2013. The three-day Summer Davos from Sept 11 to 13, also known as the World Economic Forum Annual Meeting of the New Champions, ended here on Friday. [Photo/ Xinhua]