(Correspondent: Zhong Yiming) On October 13th and November 2nd, Professor Lee Myoung-Jae of Korea University was invited to give lectures on Difference-in-Differences (DID) for our teachers and students. The lectures were chaired by Assistant Professor Chae Minhee. Teacher Zhao Hong, Zhang Zhiqiang, Shi Shuang and more than 20 graduate students attended the lectures.

In the first lecture, professor Lee Myoung-Jae introduced the basic ideas of Difference-in-Differences method and discussed how to use panel data and repeated cross-section methods. In the second lecture, he introduced some recent development of DID, including Difference-in-Differences in Reverse, Synthetic Control, and Staggered Adoption. During communication and discussion, the students and teachers had a full, in-depth and constructive discussion with Professor Lee Myoung-Jae.

Profeessor Lee Myoung-jae received his Ph.D. in Economics from University of Wisconsin-Madison in 1989 and is currently a professsor of Economics at Korea University. His primary research interests are Econometrics and Labor Economics with the specific areas including Panel Data, Limited Dependent Variables, Sample Selection, Treatment Effects, Duration Analysis, etc.His studies have been published in the world's top journals, such as Economictrica and Journal of Econometrics. Also, he wrote and published micro-econometrics books, which involve Difference-in-Differences method and panel data analysis. Professor Lee Myoung-Jae's visit further not only develops the friendly relationship between the School of Economics of Nankai University and the School of Economics of Korea University, but also builds a friendly bridge for future academic exchanges, faculty and student visits, and joint training.