As China seeks to become an advanced nation, Chinese President Xi Jinping said in November that it was possible to double the country’s gross domestic product and per capita income by 2035. Doubling of China’s GDP requires an average annual growth of 4.7% for the next 15 years — which some observers said may be hard to achieve. But Helen Qiao, head of Asia economics at BofA Global Research, said some reform measures would help China get there.