Codirectors
![Ralph Koijen](/sites/default/files/styles/author_card/public/2020-09/Ralph%20Koijen%20Profile.jpeg?itok=YFMvU3xV)
Ralph S. J. Koijen is the AQR Capital Management Professor of Finance at the University of Chicago Booth School of Business. His research focuses on finance, insurance, and macroeconomics. He has been an NBER affiliate since 2010.
![Sydney Ludvigson Profile.jpeg](/sites/default/files/styles/author_card/public/2020-09/Sydney%20Ludvigson%20Profile.jpeg?itok=IT_vTBfs)
Sydney C. Ludvigson is the Julius Silver, Roslyn S. Silver, and Enid Silver Winslow Professor of Economics at New York University. Her research focuses on the interplay between asset markets and macroeconomic activity. She has been an NBER affiliate since 2003.
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