- Tariff barriers and the protection of intellectual property in the global economy (with Difei Geng). European Economic Review 144, Article 104074, 2022.
- The role of non-discrimination in a world of discriminatory preferential trade agreements (with Woan Foong Wong and Halis Yildiz). Canadian Journal of Economics 55(1), 174-212, 2022.
- Patent protection in developing countries and global welfare: WTO obligations versus flexibilities (with Eric W. Bond). Journal of International Economics 122, Article 103281, 2020.
- Optimal price regulations in international pharmaceutical markets with generic competition (with Difei Geng). Journal of Health Economics 71, Article 102315. 2020.
- Should the WTO require free trade agreements to eliminate internal tariffs? (with Woan Foong Wong and Halis M. Yildiz). Journal of International Economics 118, 316-330, 2019.
- Do free trade agreements affect tariffs of non-member countries? A theoretical and empirical investigation (with Andrey Stoyanov and Halis M. Yildiz). American Economic Journal: Applied Economics 10(3), 128-170, 2018.