Contributor(s): Gary Gensler | In this seminar hosted by the LSE Financial Markets Group, Gary Gensler discusses derivatives reform as well as issues relating to high-frequency trading. Gary Gensler was sworn in as the Chairman of the Commodity Futures Trading Commission on May 26, 2009. Chairman Gensler previously served at the U.S. Department of the Treasury as Under Secretary of Domestic Finance (1999-2001) and as Assistant Secretary of Financial Markets (1997-1999). He subsequently served as a Senior Advisor to the Chairman of the U.S. Senate Banking Committee, Senator Paul Sarbanes, on the Sarbanes-Oxley Act, reforming corporate responsibility, accounting and securities laws. As Under Secretary of the Treasury, Chairman Gensler was the principal advisor to Treasury Secretary Robert Rubin and later to Secretary Lawrence Summers on all aspects of domestic finance. The office was responsible for formulating policy and legislation in the areas of U.S. financial markets, public debt management, the banking system, financial services, fiscal affairs, federal lending, Government Sponsored Enterprises, and community development. In recognition of this service, he was awarded Treasury's highest honour, the Alexander Hamilton Award. Prior to joining Treasury, Chairman Gensler worked for 18 years at Goldman Sachs, where he was selected as a partner; in his last role he was Co-head of Finance. Chairman Gensler is the co-author of a book, The Great Mutual Fund Trap, which presents common sense investment advice for middle income Americans.