Professor of Law and Director of Columbia's Center on Corporate Governance
1966, degree, Amherst College; 1969, degree, Yale Law School. Fellow, American Academy of Arts and Sciences. Member of the Legal Advisory Board: NASD; New York Stock Exchange. Member of the Economic Advisory Board, Nasdaq. Member of the Advisory Committee, SEC. Chair, ALI-ABA Corporate Governance Institute. Member of the Board of Directors: Securities Regulation Institute. Expertise: corporate governance and securities regulation.