Portrait of José Daniel Vargas Rozo

José Daniel Vargas Rozo : Senior Consultant

José Daniel has extensive experience in competition economics, with a particular focus on mergers, damages quantification, and antitrust litigation across sectors such as automotive, retail, insurance, and consumer goods. He also specialises in energy regulation, with expertise in conducting detailed regulatory assessments through his work analysing a broad range of regulatory changes, consultations, and proposals in the Spanish energy sector.

Prior to joining Oxera, he worked across public institutions, consulting, and a Spanish electricity association. As an expert adviser on energy regulation at one of Spain’s leading electricity associations, he played a key role in developing and defining the association’s position during significant regulatory developments, and represented the association in bilateral meetings with national regulators (CNMC and the Ministry of Energy).

Previously, he worked at KPMG as a Manager and Senior Manager for over ten years, advising clients on energy regulation and competition economics across multiple sectors, leading high-impact projects, preparing expert reports, and providing expert witness testimony in court in follow-on damages cases.

He also held roles as a Technical Advisor at the Spanish National Energy Commission, contributing to regulatory analysis and market assessments in the electricity sector, and as an Economist in the Competition Division at the Colombian Competition Authority, where he handled merger cases, cartel and abuse of dominance investigations.

José Daniel speaks English, and Spanish.

Tel: +34 91 019 3569

José Daniel's specialisms include:

Selected
professional experience

  • Advocacy and regulatory advice on several regulatory proposals that affect the electricity distribution activity in Spain, including the new remuneration model for the upcoming regulatory period (2026–31), as well as proposals to increase the investment cap for electricity distribution and transmission grids (2023–26)

  • Provided advice and contributed to the design of the regulatory proposal on flexible connections presented by distribution system operators to the Spanish regulator, which will redefine how demand installations obtain flexible access to distribution grids (2025–26)

  • Acted as an economic expert and expert witness for one of Spain’s main car manufacturers in the damages case arising from the CNMC Decision S/0482/13 Fabricantes de Automóviles (2022–23)

  • Advised a major truck manufacturer in Spain as an economic expert and expert witness in the follow-on damages claim arising from the European Commission Decision AT.39824 – Trucks (2018–23)

  • Advised a manufacturer of low-voltage and medium-voltage cables in Spain in its economic defence in the LV/MV Cables cartel investigation conducted by the national competition authority (CNMC) (2016–17)

  • Assessed the impact of a merger and analysed remedies in a case before the national competition authority (CNMC) involving two of Spain’s leading bakery companies (2015–16)

Selected
expert experience

  • Appointed as an economic expert and provided expert witness testimony in competition damages proceedings before the Spanish Courts in cases involving the trucks and car markets (2017–23)

Selected
publications

  • Pingarrón, J. and Vargas Rozo, J.D. (2015), ’Rescatando la definición del mercado relevante en los casos de conductas colusorias’, Anuario de la Competencia, pp. 185–217, Fundación ICO, Marcial Pons.

Qualifications

  • MSc Industrial Economics and Markets, Carlos III University of Madrid (UC3M), Spain

  • MA in Economics, Universidad de los Andes, Colombia

  • BA in Economics, Universidad Nacional de Colombia, Colombia