Johan Walden is an Associate Professor of Finance at University of California at Berkeley, Haas School of Business, where he has been on the faculty since 2005. He received his Ph.D. in financial economics from Yale University. Professor Walden’s research is focused on asset pricing, networks in capital markets, diversification of heavy-tailed risks, and insurance markets. He has published articles on these topics in leading journals, e.g., in the Review of Financial Studies, Journal of Financial Economics, Journal of Finance, Review of Economic Studies, Journal of Economic Theory, and Journal of Risk and Insurance. Professor Walden has also assisted the Congressional Oversight Panel in appraising the Federal Reserve Board’s Supervisory Capital Assessment Program, the Swedish Financial Markets Committee in assessing the impact on the Swedish financial system of new Insurance and Banking regulation after the financial crisis. Previously, Professor Walden worked as a management consultant at McKinsey & Company, and as a Postdoctoral research associate at Yale University, Department of Mathematics. He also has a Ph.D. and Docentship in applied mathematics from Uppsala University, Sweden. Professor Walden has held visiting positions at several academic institutions, including Oxford University, New York University, and INSEAD.