- "A Game-Theoretic Approach to a Firm's Strategic Focus between Customer Retention and Acquisition: Unlatching a Door to the Competitor," with Wooje Cho and Woojung Chang.
- "Games with Imperfect and Asymmetric Information: Solution Techniques," with Kyung Hwan Baik.
- "Endogenous Choice On (Group) Impact Functions," with Jonghwa Lee.
