He studied civil engineering as an undergraduate at Yonsei before earning a masters at Stanford University and a doctorate from the University of Tokyo .
Prior to his entry into politics , Ji was a professor at Yonsei University 's Graduate School of International Studies .
Ji studied civil engineering as an undergraduate at Yonsei University before earning a masters at Stanford University and a doctorate from the University of Tokyo .
Prior to his entry into politics , Ji was a professor at Yonsei University 's Graduate School of International Studies .