Our Leadership

Olin Business School Leadership


Dean Michael J. Mazzeo

Dean-Designate Michael J. Mazzeo

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—has been cited thousands of times.

Students have recognized Mazzeo with teaching awards numerous times for his work as a strategy instructor in Kellogg’s MBA and executive MBA programs. He served as faculty director for Kellogg’s evening and weekend MBA programs and its Master of Science in management studies program. He was the school’s senior associate dean for curriculum and teaching from 2017 through 2020.

As a scholar, Mazzeo has developed new statistical methodologies for examining the relationship between product differentiation and market competition, with insights spanning the airline, banking, healthcare, hospitality, retail and telecommunications industries and applications for both business strategy and antitrust analysis. He serves on the editorial board of the Review of Industrial Organization and is coauthor of Roadside MBA: Back Road Lessons for Entrepreneurs, Executives and Small Business Owners.

That 2014 book, a collaboration with fellow business professors from Stanford and the University of Utah, was based on visits with more than 250 small- and medium-size businesses over a dozen years. Covering more than 30 states and 12 countries, the team shared stories illustrating the important concepts taught in leading MBA programs.

Mazzeo’s research has been published in leading journals, including the Rand Journal of Economics, the Journal of Economics and Management Strategy, Marketing Science, the Review of Economics and Statistics, the Review of Industrial Organization, Quantitative Marketing and Economics, and the Journal of Industrial Economics.

At Kellogg, Mazzeo was the point person for the school’s response to the COVID-19 pandemic and used that experience to innovate in the school’s working professional degree programs.

Mazzeo earned his PhD in economics from Stanford University in 1998 and was immediately hired on to the faculty at Kellogg. Previously, he earned his bachelor’s degree in economics and urban studies at Stanford in 1991.

His child attends New York University. Outside of work, he volunteers on the board of directors for Chicago-based Howard Brown Health, which provides affirming healthcare services to the LGBTQ+ community and is one of the nation’s largest LGBTQ+ nonprofits.

Markus Baer

Vice Dean for Degree and Nondegree Executive Education and Professor of Organizational Behavior


Markus Baer is a tenured, full professor of organizational behavior and has been on WashU Olin’s faculty since 2006. Baer oversees the academic aspects of Olin’s executive education portfolio, including three Executive MBA programs in St. Louis, Mumbai and Shanghai, as well as nondegree executive education in St. Louis and Washington, DC; in partnership with Brookings; and virtual formats. His research examines creativity and innovation and all its related activities—problem formulation, idea generation, idea selection and idea implementation. His research has been published in leading academic journals and has won multiple awards, including the “Olin Award Recognizing Research That Impacts Business.” Baer has been honored as one of the world's “Best 40 Business Professors Under 40.” He earned his PhD from the University of Illinois Urbana–Champaign and holds an MA from the University of Giessen in Germany.

Andrew Knight

Vice Dean for Education and Globalization and Professor of Organizational Behavior


Andrew Knight has been on WashU Olin’s faculty since 2010. Knight oversees the academic aspects of Olin’s undergraduate and graduate programs and develops and maintains global partnerships. His research and teaching address leadership, teamwork and people analytics, with a special focus on entrepreneurship and healthcare. Before joining WashU Olin, Knight was a founding team member of a healthcare analytics company, leading its research and product development function. He earned a master’s degree in industrial/organizational psychology from the University of Maryland and a PhD in managerial science and applied economics from the University of Pennsylvania’s Wharton School.

Mark Leary

Co-Vice Dean of Faculty and Research and Professor of Finance


Mark Leary joined WashU Olin's faculty in 2010. In his role as co-vice dean, Leary oversees senior faculty and all aspects of faculty research support. His research investigates the motives behind corporate financial policy decisions, including leverage, security issuance, dividend and share repurchase decisions. He taught previously at Cornell University and, prior to his academic career, worked for CVS Corp. and the Federal Reserve Bank of New York. Leary holds a bachelor’s degree in economics from Rutgers University, an MBA from New York University and a PhD in finance from Duke University.

Robyn LeBoeuf

Co-Vice Dean of Faculty and Research and Joyce and Chauncy Buchheit Distinguished Professor in Marketing


Robyn LeBoeuf joined WashU Olin’s faculty in 2014. As co-vice dean of faculty and research, she oversees junior and teaching-track faculty and manages the promotion and tenure process. In her research, she strives to understand how people make decisions and to explore the subtle factors that bias those decisions. An award-winning teacher and researcher, LeBoeuf has taught marketing, decision-making and consumer behavior courses across WashU Olin’s undergraduate and graduate programs. She earned her undergraduate degree in psychology and statistics from American University and her PhD in psychology from Princeton University.

Brent Jenson

Senior Associate Dean of Finance


Brent Jenson is the school’s chief financial officer responsible for fiscal oversight of Olin, including financial planning, reporting and accounting. A key component of his role is aligning budgets with the strategic direction of the school. He has been with WashU for more than 20 years and holds a WashU Olin MBA.