Mike Mazzeo became dean of WashU Olin Business School on September 1, 2023. He joined the Olin faculty as a professor of economics after a 25-year career as a researcher, scholar and educator at Northwestern University’s Kellogg School of Management, where he was a professor of strategy and a faculty associate at the university’s Institute for Policy Research. Mazzeo has had a distinguished and prolific career as a researcher, and his work—focused on empirical industrial organization—...