Paul Krugman, recipient of the 2008 Nobel Memorial Prize in Economic Sciences, is Professor of Economics at Princeton University, where he regularly teaches the principles course. He received his BA from Yale and his PhD from MIT. Prior to his current position, he taught at Yale, Stanford, and MIT. He also spent a year on the staff of the Council of Economic Advisers in 1982–1983. His research is mainly in the area of international trade, where he is one of the founders of the “new trade theory,” which focuses on increasing returns and imperfect competition. He also works in international finance, with a concentration in currency crises. In 1991, Krugman received the American Economic Association’s John Bates Clark medal. In addition to his teaching and academic research, Krugman writes extensively for nontechnical audiences. He is a regular op-ed columnist for the New York Times. His latest trade books, both bestsellers, are End this Depression Now!, a look at the recent global financial crisis and recovery, and The Return of Depression Economics and the Crisis of 2008, a history of recent economic troubles and their implications for economic policy. His earlier books, The Conscience of a Liberal, Peddling Prosperity, and The Age of Diminished Expectations, have become modern classics.

Robin Wells was a Lecturer and Researcher in Economics at Princeton University. She received her BA from the University of Chicago and her PhD from the University of California at Berkeley; she then did postdoctoral work at MIT. She has taught at the University of Michigan, the University of Southampton (United Kingdom), Stanford, and MIT. The subject of her teaching and research is the theory of organizations and incentives.

Iris Au is a Senior Lecturer in Economics at the University of Toronto Scarborough (UTSC). She received her BA, MA, and PhD from Simon Fraser University, British Columbia. She taught at Simon Fraser University and Kwantlen University College (now known as Kwantlen Polytechnic University) before joining UTSC. Currently, she teaches introductory and intermediate macroeconomics, international finance, economics of public policy, and topics on financial crises on a regular basis.

Jack Parkinson is a Senior Lecturer in Economics at the University of Toronto Scarborough (UTSC). He received his Hons. BA from Western University and his MA and PhD from the University of Toronto. He has worked as a corporate tax policy analyst for the Ontario Ministry of Finance while teaching during his lunchtime or evenings. Over the past twenty years he has taught on all three campuses of the University of Toronto. Currently, he teaches introductory microeconomics, intermediate and advanced macroeconomics, money and banking, economics of organization, and applied economic statistics.