Principal, Cornerstone Research
Jennifer Marietta-Westberg consults on economic and financial issues arising in litigation and regulatory investigations in financial markets. Dr. Marietta-Westberg addresses allegations related to financial reporting, asset management, trading, private equity, and mergers and acquisitions.
An experienced expert witness, she has testified on matters related to Rule 10b-5/Section 11 securities class actions, damages, alleged insider trading, corporate governance, and Employee Retirement Income Security Act (ERISA) matters. Dr. Marietta-Westberg has supported respondents in enforcement actions involving the Department of Justice (DOJ) and the Securities and Exchange Commission (SEC). She leads large teams to support academic and industry experts at all stages of litigation, including trial.
Dr. Marietta-Westberg is a member of the Investor Advisory Committee of the SEC, which offers guidance to the Commission on regulatory priorities and initiatives to support the integrity of the securities marketplace. She also serves on the board of directors at the Institute for Law and Economics at the University of Pennsylvania.
Dr. Marietta-Westberg worked for ten years at the SEC, in several capacities. She served as the deputy chief economist and deputy director of the Division of Economic and Risk Analysis (DERA). Dr. Marietta-Westberg also managed economic analysis in support of Commission policy and rulemaking in the areas of asset management, broker-dealers, credit rating agencies, and market microstructure. She oversaw many of DERA’s economic analyses in support of international initiatives.
Prior to joining the SEC, Dr. Marietta-Westberg was an assistant professor at Michigan State University. Her research has been published in the Journal of Accounting and Economics, the Journal of Corporate Finance, and European Financial Management.