Gary Clyde Hufbauer, Reginald Jones Senior Fellow since 1992, was formerly the Maurice Greenberg Chair and Director of Studies at the Council on Foreign Relations (1996–98), the Marcus Wallenberg Professor of International Finance Diplomacy at Georgetown University (1985–92), senior fellow at the Institute (1981–85), deputy director of the International Law Institute at Georgetown University (1979–81); deputy assistant secretary for international trade and investment policy of the US Treasury (1977–79); and director of the international tax staff at the Treasury (1974–76).

Ariel Assa is a tax counsel for JP Morgan Chase & Co. in New York City. He was a tax attorney at the law firms of Willkie, Farr & Gallagher LLP in New York City (2003-07) and Herzog, Fox & Neeman in Tel Aviv (1999-2001). He also served as a tax agent in Israel's Income Tax Authority (1994-99) and an assistant professor in several tax courses at Tel Aviv University (1996-2001). He earned his law, accounting, and MBA degrees from Tel Aviv University and is a graduate of the LLM program in taxation at Georgetown University Law Center (2002).