Ralph S.J. Koijen is the AQR Capital Management Distinguished Service Professor of Finance and Fama Faculty Fellow at the University of Chicago Booth School of Business. He is also a Research Associate at the National Bureau of Economic Research and a Research Fellow of the Centre for Economic Policy Research. He is a co-director of the NBER Asset Pricing program. He serves as a co-editor of the Review of Financial Studies. Professor Koijen was awarded the 2019 Fischer Black Prize by the American Finance Association, given biennially to the top financial economics scholar under the age of 40. He was also awarded the 2021 Bernacer prize given to the best European economist under 40 working in macroeconomics and finance.
Professor Koijen’s research focuses on finance, insurance, and macroeconomics. His research has been published in the American Economic Review, Econometrica, the Journal of Political Economy, the Quarterly Journal of Economics, the Journal of Finance, the Review of Financial Studies, and the Journal of Financial Economics. His research has been covered in popular media, such as the Financial Times, the Wall Street Journal, and The Economist.
Before joining Chicago Booth in 2018, Professor Koijen was a Professor of Finance at the London Business School and NYU Stern, and an Assistant and Associate Professor of Finance at Chicago Booth. He received his undergraduate degree in Econometrics from Tilburg University and his Ph.D. in Finance from Tilburg University.