In the introductory remarks, Tsinghua SEM Dean QIAN Yingyi welcomed U.S. Secretary of Treasury Jacob Lew to Tsinghua University and the School of Economic and Management. Dean QIAN introduced the Secretary’s career and educational backgrounds, as well as the history of Tsinghua SEM. Dean QIAN expressed that Tsinghua SEM is active in academic and policy research in economics and finance on issues relevant to China and the global economy.  The School regularly hosts academics and policy makers to speak and discuss on the critical issues facing the Chinese economy. Dean QIAN said that “We are particularly interested in research on the economic relationship between China and the U.S. in the global economy.  U.S.-China economic relationship is obviously the most important bilateral economic relationship today and has enormous impact on the global economy”. He cited figures to illustrate this point: "In 1981, China’s GDP was only 6% of the U.S.  Last year in 2015, it was nearly 60% of the U.S.  Moreover, the combined GDP of the two economies accounted for 36% of the world’s total. "He believed that the discussion with Secretary Lew will give the students and faculty of this important bilateral economic relationship from the U.S. perspective and provide food for thought for research at the School.