O presente artigo teve como objetivo analisar e determinar a evolução da concentração de mercado do setor supermercadista brasileiro no perÃodo compreendido entre 1998 e 2013. O estudo constatou-se que houve aumento da concentração no setor supermercadista, impulsionado pela entrada de redes estrangeiras e pelo expressivo movimento de fusões e aquisições verificados a partir da década de 1990.
This article aims to measure and to analyze the evolution of the Brazilian supermarket sector market concentration in the period between 1998 and 2013. This was made possible by the analysis of the main indicators of concentration calculated namely: concentration ratio (CR), Herfindahl-Hirschman index (H) and the Theil entropy index (ET). It was found that there was increased concentration in the supermarket sector, driven by the entry of foreign networks and the expressive movement of mergers and acquisitions recorded from the 1990s.
