Mark A. Aguiar is the Walker Professor of Economics and International Finance in the Department of Economics and co-director of the Griswold Center for Economic Policy Studies. Aguiar joined the Princeton University faculty in 2011, after holding appointments at the University of Rochester, the Federal Reserve Bank of Boston, and the University of Chicago Graduate School of Business. Aguiar is also co-director of the NBER program on International Finance and Macroeconomics, and was elected to the American Academy of Arts and Sciences in 2026. From 1989-1995, as a US Department of State foreign service officer, he served in embassies in Seoul and Beijing, and in the Office of Japanese Affairs in Washington, DC. Aguiar’s research addresses issues in open- and closed-economy macroeconomics. Aguiar has studied emerging market business cycles, sovereign debt, the political economy of capital taxation, and growth; his recent research spans self-fulfilling debt crises, equilibrium maturity choice, capital gains taxation, international risk sharing, and the macroeconomic effects of tariff wars. He is also the co-author of The Economics of Sovereign Debt and Default (Princeton University Press). Aguiar received his BA in history and Chinese from Brown University, and his PhD in economics from MIT.