Ethan Rouen is Associate Professor of Business Administration at Harvard Business School, where he teaches the course "Reimagining Capitalism" and is Faculty Cochair of the Impact-Weighted Accounts Program. He is also a member of Arthur D. Little’s AMP open consulting network. Professor Rouen’s research approach combines empirical archival methodologies with leading-edge data science techniques, such as machine learning and neural network models. His current research areas include understanding economic inequality and the measurement of human capital; the evolution and current status of environmental, social, and governance (ESG) voluntary disclosures; and the US Securities and Exchange Commission (SEC) disclosures related to the CEO pay ratio. Professor Rouen has also researched financial statement errors and the effect of US corporate tax policy on the performance of US corporations versus the overall economy. His research has been published in Journal of Financial Economics, The Accounting Review, Management Science, and Review of Accounting Studies. Professor Rouen has also appeared in the Boston Globe, Le Monde, HuffPost, The Hill, CEOWORLD, and Fortune, among others. He appears frequently in national and international media outlets.

Professor Rouen was awarded Best Junior Contribution to the Theory and Practice of Intangibles, Intellectual Capital, and Sustainability by the European Institute for Advanced Studies in Management (EIASM) at the 2022 EIASM Interdisciplinary Conference for “Regulated Human Capital Disclosures” with Thomas Bourveau, Maliha Chowdhury, and Anthony Le. He was also the winner of the 2022 Innovation in Research Award from the Diversity Section of the American Accounting Association for “Inclusive Managers” with Wei Cai and Yuan Zou. Additional awards include the Competitive Manuscript Award, the Deloitte Foundation Wildman Medal, and the Best Dissertation Award in the Financial Accounting and Reporting Section from the American Accounting Association. Professor Rouen earned a PhD in accounting and an MBA in finance and accounting from Columbia Business School, a master's of science degree in journalism from Columbia University Graduate School of Journalism, and a bachelor of arts degree in history and English from the University of Wisconsin-Madison.