Prof. Chang is a Leading Professor at SUNY Stony Brook in Korea since 2022. He spent 35 years as Professor of Marketing at Yonsei School of Business. He received his Doctorate from Harvard University, his MBA from Columbia University, and his BCom from the University of British Columbia. A former Dean of the Graduate School of International Studies at Yonsei University, he has held visiting faculty appointments at Helsinki School of Economics, Hong Kong University of Science & Technology, Australian National University, Singapore Management University, Nanyang Technology University, and was a Visiting Scholar at Columbia University, University of Vienna and University of St. Andrews.  
His films include “I, Profess” (2014, Semi-finalist at Calcutta Cult film festival), “Call Coho” (2015, best international short at LA Indie Film Festival, best actor for Jung-gi Min at iFilmmaker, screenings at festivals in Copenhagen, Sydney, NYC, Ferrara (Italy) and Marbella (Spain)), “The First Timer” (2018), winner of best international director at the Portland International Comedy Film Festival), and one documentary, “We Can Dream” (2019, best short documentary at festivals in LA, Napoli, Helsinki and Vienna). He has been a jury member at the Corto e a Capo Film Festival in Italy.