The Quarterly Journal of Economics is the oldest professional journal of economics in the English language. Edited at Harvard Universitys Department of Economics, it covers all aspects of the field.QJE is invaluable to professional and academic economists and students around the world.The goal of this magazine is to promote research in economics, enhance our understanding of economic phenomena, and provide theoretical and empirical foundations for solving practical economic problems. As an important journal in the field of economics, this journal has a significant impact on the research and teaching of economics.