Dr. Tabak earned his PhD and MA degrees in economics from Harvard University and his BS in economics and BS in physics from the Massachusetts Institute of Technology. While at Harvard, Dr. Tabak participated in teaching courses in micro- and macroeconomics and American economic policy at the undergraduate and graduate levels, and in the creation of an undergraduate textbook and accompanying software package.
Dr. Tabak has appeared as an expert in state, federal, and bankruptcy court, and before arbitration panels, including the National Association of Securities Dealers, the American Arbitration Association, and the International Chamber of Commerce International Court of Arbitration. He has published in his areas of expertise in forums such as St. John's Law Review and Shannon Pratt's Business Valuation Update, and has published peer-reviewed articles in Litigation Economics Review and the Journal of Forensic Economics. Dr. Tabak is also the author of book chapters and has served as a member of BV Q&A Update's expert author panel and as a referee for peer-reviewed journals. His publications have covered topics such as the use of event studies to measure damages in commercial disputes, economic analysis of market efficiency, valuation discounts for lack of marketability, and the application of statistics in litigation analyses. Dr. Tabak has been a speaker at forums that provide continuing legal education credits or continuing professional education credits for appraisers and an invited speaker at the Securities and Exchange Commission.
At NERA, Dr. Tabak is a member of the Securities and Finance Practice. In the area of securities class actions, Dr. Tabak has performed analyses involving issues of class certification, liability, materiality, affected trading volume, and damage calculations in cases with allegations ranging from product issues to the value of an issuer of subprime mortgages. He has also performed valuations of equity, options, other financial derivatives, businesses, and financial institutions.
Dr. Tabak has been retained as an expert to address issues including allegations of options backdating, market timing of mutual funds, valuations, contract disputes, commercial damages, and disputes between brokers and customers. His non-litigation work has included developing a risk-scoring model for a reinsurance company, assisting financial institutions in new product development, and interpretation of statistical analyses of treatment effectiveness for a program for at-risk youth.
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