Avaliação da eficiência técnica das companhias de saneamento básico da região nordeste utilizando a análise envoltória de dados

Abstract

This study aimed to analyze the technical efficiency of regional basic sanitation companies in the Northeast state of Brazil from 2015 to 2019. The DEA (Data Envelopment Analysis) methodology was used for this analysis, and the data was obtained from the National Sanitation Information System (SNIS). The study provided detailed results regarding the outputs of the constructed model and identified the areas in which the companies need to improve to achieve the desired technical efficiency. It was found that the variable with the greatest impact on efficiency improvement was the number of active sewer connections. The results indicated that only three out of the nine regional companies were considered efficient throughout the entire historical period, highlighting the need for improvements in the sanitation sector in the Northeast. Therefore, it becomes clear the importance of increasing investments and expenses in this sector, in line with the proposal to promote private sector participation in sanitation brought by the New Sanitation Framework.