ResumoEste trabalho apresenta uma análise da evolução da eficiência de escala de operadores logísticos frigorificados que operaram no mercado brasileiro no período de 2007 a 2010. O estudo faz uso de Análise Envoltória de Dados e procedimentos estatísticos fundamentados na análise de componentes principais para seleção das variáveis input e output utilizadas na análise. Para a elaboração do estudo foram empregados dados secundários extraídos de uma publicação especializada da área de Logística. Os resultados mostram que o setor apresentou taxa de crescimento elevado e que as empresas acompanharam esta tendência. Retornos decrescentes de escala não foram observados na amostra considerada, o que sugere que o mercado apresentava potenciais de crescimento de escala ainda inexplorados pelos operadores logísticos frigorificados. O trabalho ainda apresenta análises da evolução dos escores de eficiências com eventos anuais relacionados à alteração do porte de três empresas emblemáticas que operaram no setor. Palavras-Chaves:Eficiência de Escala, Análise de Envelopamento de Dados; Operadores Logísticos Frigorificados. Abstract 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 techniques based on principal component analysis for the selection of input variables and output used in the analysis. To develop this study secondary data taken from a specialized publication of the Logistics area were used. The results show that the sector had high growth rate and that companies size followed this trend. Decreasing returns to scale were not observed 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 this study. The work also presents an analysis of the evolution of scale efficiency scores with annual events related to change the size of three flagship companies.
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