Professor of Finance and Business Economics, and director of the Center of Investment Studies at the University of Southern California, where he holds the Fred V. Keenan Chair in Finance at the Marshall School of Business.
Serves as a director of the Clipper Fund and as the research coordinator of the Institute for Quantitative Research in Finance.
From 2002 – 2004, served as the Chief Economist of the U.S. Securities and Exchange Commission.
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