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This paper presents an analysis of the evolution of temperature-controlled logistics operators scale efficiency that operated from 2007 to 2010 in the Brazilian market. The study uses data envelopment analysis and statistical tech niques based on principal component analysis for the selection of input variables and o utput used in the analysis. To develop this study secondary data taken from a specialized publi cation of the Logistics area were used. The results show that the sector had high growth ra te and that companies size followed this trend. Decreasing returns to scale were not observe d in this sample which suggests that the market have had potential scale growth untapped by the logistics service firms that operated in cold supply chains in the years considered in th is study. The work also presents an analysis of the evolution of scale efficiency scores with an nual events related to change the size of three flagship companies.

EVOLUÇÃO DA EFICIÊNCIA DE ESCALA DE OPERADORES LOGÍSTICOS FRIGORIFICADOS NO BRASIL