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. (Xinhua/Yang Qing)