Erik R. Sirri is on leave from Babson College where he is a Professor of Finance. He is currently the Director of Market Regulation at the U.S. Securities and Exchange Commission. In this role he is responsible to the Commission for the administration of all matters relating to the regulation of stock and option exchanges, national securities associations, brokers, dealers, and clearing agencies. His research interests include the interaction of securities law and finance, securities market structure, securities trading, and the investment management industry. From 1996 to 1999, Sirri served as the Chief Economist of the Securities and Exchange Commission. Before joining the SEC, Sirri was an Assistant Professor of Finance at the Harvard Business School from 1989 to 1995.

Sirri received his B.S. in Astronomy from the California Institute of Technology in 1979, an M.B.A. from the University of California, Irvine, in 1984, and his Ph.D. in Finance from the University of California, Los Angeles, in 1990. Before becoming a professor, he worked on planetary astronomy missions for NASA and on space surveillance sensors in the aerospace industry. His published writings appear in academic journals, practitioner journals, and books. He has served as a Governor of the Boston Stock Exchange and a member of the regulatory board of the Boston Options Exchange (BOX). He has consulted for securities firms, stock exchanges, mutual fund companies, issuers, and information vendors on a variety of regulatory and business matters.

Areas of expertise include: Law and Finance, Capital Markets, Trading and Exchanges, Mutual Funds and Investment Management