Dr. Marín is an expert in economic analysis, with extensive knowledge and experience in business valuation, contract price reviews, competition, and regulation, particularly in the energy, telecommunications, and transportation industries.

Dr. Marín has presented expert testimony in commercial disputes and international arbitrations on numerous occasions, including in disputes involving long-term supply contracts and among shareholders; and regulatory analysis. He has presented testimony calculating damages in the energy, telecommunications, media, finance, construction, mining, highway concessions, and retail services sectors, among others.

Additionally, Dr. Marin has advised energy companies in price negotiation processes, particularly in the natural gas and liquefied natural gas markets. On competition matters, he has presented testimony before competition authorities, international courts, and magistrates, and has advised companies, investors, and regulatory authorities in relation to energy regulation. Many of his cases involve the markets in Spain, Portugal, and Latin America, including Brazil, Chile, Colombia, Ecuador, Mexico, Panama, and Peru.

Before joining Brattle, Dr. Marin successively served as Secretary General and Secretary of State for Energy in Spain, where he was responsible for the regulation of the country’s electricity and gas markets. He led the energy liberalization process in Spain, promoted pioneering regulation for renewable energies, and defined binding targets for biofuels and its certification procedure. As Secretary of State for Energy, he chaired the Council of Energy Ministers during the Spanish Presidency of the European Union in 2010.

Between 2004 and 2008, he was director of the microeconomic policy department at the cabinet of the Spanish Prime Minister, supervising regulatory issues and competition in key productive sectors. Previously, he was professor of Economics at the Carlos III University of Madrid, where he served as Dean of the Faculty of Social and Legal Sciences.

Dr. Marin has published numerous articles in international peer-reviewed academic journals such as The Journal of Industrial Economics, the International Journal of Industrial Organization, The Journal of Law and Economics, the Competition Law Journal, and The European Journal of Health Economics.


The London School of Economics
PhD and MS in Economics

Universidad de Valencia
Graduate Degree in Economic Science