William R. Cline, PIIE senior fellow, presents the findings of his latest book, The Right Balance for Banks: Theory and Evidence on Optimal Capital Requirements, at a launch event on June 12, 2017. Daniel Tarullo, former Federal Reserve governor, and Simon Johnson, the Ronald A. Kurtz (1954) Professor of Entrepreneurship at the MIT Sloan School of Management and PIIE nonresident senior fellow, provide commentary on the critical issues for banking stability and supervision. For more information, visit: piie.com/events/book-launch-right-balance-banks-theory-and-evidence-optimal-capital-requirements