John Young Campbell attended the Dragon School, Oxford, and Winchester College. In 1979 he received his B.A. from Corpus Christi College, Oxford. In 1984 he received his Ph.D. in economics from Yale University. After graduating, he became an assistant professor at Princeton University. In 1994, he became a professor at Harvard University, where he is currently the Morton L. and Carole S. Olshan Professor of Economics.