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Hans Stoll ’61

Hans, the Anne Marie and Thomas B. Walker Professor of Finance, emeritus, at Vanderbilt University, died March 20, 2020.

After receiving an MBA and Ph.D. from the University of Chicago, Hans served on the faculty of Penn’s Wharton School before joining Vanderbilt’s Owen Graduate School of Management. He was best known for developing and testing the put-call parity relation for option prices; modeling and testing the behavior of securities markets dealers; his work on program trading and the “triple witching hour”; and his work on the sources and components of the bid-ask spread.

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