K. Anthony Appiah was educated at schools in Ghana and in England, and studied at Clare College, Cambridge University, in England, where he took both BA and PhD degrees in philosophy. His Cambridge dissertation brought together issues in the philosophy of language and the philosophy of mind, which led to two books Assertion and Conditionals (1985, Cambridge University Press) and For Truth in Semantics (1986, Basil Blackwell). 

Since Cambridge, he has taught at Yale, Cornell, Duke, and Harvard universities and lectured for institutions in the United States, Australia, Brazil, France, Germany, Ghana, Hong Kong, Israel, Italy, New Zealand, Norway, Qatar, South Africa, Spain, and the United Kingdom. From 2002 to 2013, he was a member of the Princeton University faculty. Among his recent books are Cosmopolitanism: Ethics in a World of Strangers (2006, W. W. Norton), Experiments in Ethics (2008, Harvard University Press), The Honor Code: How Moral Revolutions Happen (2010, W. W. Norton), Lines of Descent: W. E. B. Du Bois and the Emergence of Identity (2014, Harvard University Press), and A Decent Respect: Honor in the Lives of People and of Nations (2015, University of Hong Kong Law School). 

In January 2014, he joined NYU School of Law, where he teaches in New York, Abu Dhabi, and other NYU global centers. 

Brad DeLong is a professor of economics at U.C. Berkeley, a research associate of the National Bureau of Economic Research, a weblogger at the Washington Center for Equitable Growth, and a fellow of the Institute for New Economic Thinking. He received his B.A. and Ph.D. from Harvard University in 1982 and 1987. He joined UC Berkeley as an associate professor in 1993 and became a full professor in 1997.

Professor DeLong also served in the U.S. government as Deputy Assistant Secretary of the Treasury for Economic Policy from 1993 to 1995. He worked on the Clinton Administration’s 1993 budget, on the Uruguay Round of the General Agreement on Tariffs and Trade, on the North American Free Trade Agreement, on macroeconomic policy, and on the unsuccessful health care reform effort.

Before joining the Treasury Department, Professor DeLong was Danziger Associate Professor in the Department of Economics at Harvard University. He has also been a John M. Olin Fellow at the National Bureau of Economic Research, an Assistant Professor of Economics at Boston University, and a Lecturer in the Department of Economics at M.I.T.