Michael J. Graetz is a Professor of Law at Columbia Law School and the Justus S. Hotchkiss Professor of Law Emeritus at Yale University. He has previously published seven books and many articles on a wide range of public policy issues. He also served in important policy positions at the Treasury Department and has been awarded the Daniel M. Holland Medal for outstanding contributions to the field of public finance. In addition he was a John Simon Guggenheim Memorial Fellow and is a fellow of the American Academy of Arts and Sciences.