Li Yining, born in Yizheng of Jiangsu Province, is a professor of Peking University. He is also the director of Social Science Department and honorary president of Guanghua School of Management, Peking University. Cheng Zhiqiang, born in Chunhua of Shanxi Province, is a Ph.D. of Economics. He is also a part-time professor of Guanghua School of Management, Peking University and the director of China Postdoctoral Science Foundation.