James D. Hamilton is the Robert F. Engle Professor of Economics at the University of California at San Diego and co-editor for Quantitative Economics. He has published widely in econometrics, macroeconomics, energy economics, and finance, and received the 2014 award for outstanding contributions to the profession from the International Association for Energy Economics. He is also a Fellow of the Econometric Society, the Journal of Econometrics, the International Association for Applied Econometrics, and the Society for Economic Measurement, and a Research Associate with the National Bureau of Economic Research.