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While most of the research work in the field of electrical engineering was aroused by the scientific challenges to be overcome, it is fair to recognize that the practical importance of engineering hinges on its economic impact on the market, the whole society and the environment. Thus, nowadays economic modeling, analysis and optimization of the electricity market is of the utmost significance. This work presents an aggregated economic analysis of the Brazilian electricity distribution companies using an economic model of a regulated market. The fundamental agents (consumer, power utility, government, society) are represented in the TAROT—Optimized Tariff Model, which is applied to the majority of the distribution companies in Brazil, based on public real data available from ANEEL—the Brazilian electrical energy regulatory agency. This reveals the economic flows in the regulated market of each company and also presents their financial status in terms of over-investments or under-investments compared to optimal investments and positive, negative or zero economic value added of each company. Moreover, the model analysis shows the socioeconomic welfare added to society in face of different optimization objectives., This study was financed in part by the Coordenaco de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) - Finance Code 001. The authors also gratefully acknowledge the financial support in part of CNPq, INERGE, and FAPEMIG, and express gratitude for the educational support of UNIFEI, KIOS Research and Innovation Center of Excellence and Department of Electrical and Computer Engineering, University of Cyprus and Universitat Politècnica de Catalunya., Peer Reviewed, Preprint