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Dr. Nuñez is an economist with corporate and consulting experience in finance, valuation, securities, and trading. He has prepared expert testimony on valuation matters before the ICSID and the ICC, and has advised clients in international arbitration proceedings and in litigation in US federal and state courts.

In the context of international arbitration, Dr. Nuñez values assets in Latin America and around the world across industries including financial institutions, energy, mining, natural resources, telecommunications, paper and packaging products, hospitality, and leisure services. He is also experienced in securities and financial matters. In litigation resulting from the global financial crisis, he worked extensively on mortgage-backed securities matters, and developed benchmark fixed income portfolios to evaluate the performance and suitability of investments.

Dr. Nuñez has in-house experience in both the corporate and legal sectors. Prior to joining Brattle, he was a senior consultant with Robins Kaplan, where he advised partners and clients in all phases of financial litigation, including case development and strategy, discovery, depositions, preparation of expert reports and testimony, and trial. Before that, as a senior economist with Cargill’s Global Capital Markets Group, Dr. Nuñez advised the corporate leadership on asset liability management, interest rate, commodity, and currency hedging. He also developed trading strategies across money markets, fixed income, currency, and commodity markets.

Representative Engagements
Valuation of Ownership Stake
Assessed the contingent value of Enel’s ownership stake in LaGeo S.A. de C.V. (“LaGeo”), a geothermal development and operating company with a portfolio of assets in El Salvador, associated with Enel’s rights under a shareholder agreement with the government of El Salvador.
Construction of Benchmark Fixed Income Portfolio for Estimation of Damages
Led a team in the development of a benchmark portfolio of fixed income securities to assess suitability of investments and the estimation of damages.
Analysis of Underwriting and Due Diligence Failures
Assisted experts in the analysis of underwriting and due diligence failures in connection with offering documents for mortgage-backed securities.
Testimony
Confidential administrative proceedings between a national pension fund regulatory agency and pension fund investment managers. Expert reports analyzing the economic rationale for certain transactions in Government securities.
September 2016
International Centre for Settlement of Investment Disputes, Case No. ARB/13/18 (Enel Green Power S.p.A. (“Enel”) v. Republic of El Salvador). Expert report assessing the contingent value of Enel’s ownership stake in LaGeo S.A. de C.V. (“LaGeo”), a geothermal development and operating company with a portfolio of assets in El Salvador, associated with Enel’s rights under a shareholder agreement with the government of El Salvador.
December 5, 2014
Publications
Book
Accounting-Based Valuation Approach
February 2021
Chapter from Global Arbitration Review's "The Guide to Damages in International Arbitration" (Fourth Edition)
Article
A Framework for Interest Awards in International Arbitration
July 04, 2018
Published in the Fordham International Law Journal, Vol. 41, Issue 4
Report
Border Adjustment Import Taxation: Impact on the U.S. Crude Oil and Petroleum Product Markets
December 16, 2016

The whitepaper finds that the U.S. House of Representatives’ Tax Reform Task Force Blueprint (the Blueprint) would lead to an increase in the domestic price of crude oil.

News & Events
March 02, 2021
Brattle Experts Contribute to New Book on Damages in International Arbitration

Brattle experts have authored three chapters in Global Arbitration Review’s The Guide to Damages in International Arbitration (Fourth Edition).

January 28, 2021
Experts Daniel Gaynor, Fabricio Nuñez, Nicholas Powers, and John Tsoukalis Promoted to Principal at The Brattle Group

The Brattle Group is pleased to announce that four experts were recently promoted to Principal: Daniel Gaynor, Fabricio Nuñez, Nicholas Powers, and John Tsoukalis.

October 24, 2018
Brattle Contributes to Agreement on Attorney's Fees in Facebook's Abandoned Share Reclassification Plan

On October 24, 2018, Facebook agreed to pay $68.7 million in attorney’s fees in connection to a shareholder lawsuit over the proposed reclassification of the company’s common stock that was canceled by Facebook’s board of directors last year.

September 25, 2017
Brattle Contributes to Shareholder Victory in Facebook Proposed Reclassification

On September 21, 2017 Facebook’s board of directors voted to abandon the pending reclassification of the company’s common stock.

December 16, 2016
Tax Reform Task Force Blueprint Could Lead to Increase in Domestic Retail Prices of Gasoline and Diesel Fuel, According to Brattle Whitepaper

A whitepaper released today by leading energy and commodities expert Philip Verleger and economists at The Brattle Group finds that the U.S. House of Representatives’ Tax Reform Task Force Blueprint (the Blueprint) would lead to an increase in the domestic price of crude oil.