On Oct.11, the 4th of 2019, organized by the center of Quantity and Economic Research of Jilin         University, was successfully held in Conference Room 284, Kuangyaung-ming Building, in 2019, and  the subject of China empirical study on the relationship between the risk of arbitrage and the rate of return of cross-section stocks. associate professor of Jilin University has brought great teaching to    the teachers and students at the center. The academic forum of this field is presided over by Profess-or Dang Chuang, deputy director of the Center.