RT Journal Article T1 Measuring the diversification of energy sources: The energy mix A1 Triguero-Ruiz, Francisco Andrés A1 Ávila-Cano, Antonio Jesús A1 Trujillo-Aranda, Francisco K1 Energía -- Consumo K1 Desarrollo energético K1 Recursos energéticos K1 Industria petroquímica AB In this paper we explore the concept of concentration/diversification of energy sources. Concentration is identified by a number that represents the energy mix, i.e., the vector of the share quota of each energy source in total consumptions. We construct a new concentration index which is a mathematical distance and economically interpretable and apply it to the world's major economies for the period between 1965 and 2018. We find that the diversification process has been considerable, intense, and widespread, and has presented different territorial patterns. PB Elsevier YR 2023 FD 2023-11 LK https://hdl.handle.net/10630/27527 UL https://hdl.handle.net/10630/27527 LA spa NO Triguero-Ruiz, F., Avila-Cano, A., & Aranda, F. T. (2023). Measuring the diversification of energy sources: The energy mix. Renewable Energy, 216, 119096. NO Funding for open access charge: Universidad de Málaga / CBUA DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 22 ene 2026