Online Essay 81.1 Audits as Signals Maciej H. Kotowski Assistant Professor of Public Policy, John F. Kennedy School of Government, Harvard University David A. Weisbach Walter J. Blum Professor of Law, The University of Chicago Law School Richard J. Zeckhauser Frank Plumpton Ramsey Professor of Political Economy, John F. Kennedy School of Government, Harvard University Administrative Law Law and Economics Regulation Revelation Mechanisms