ASSESSING MANAGERIAL EFFICIENCY OF BRAZILIAN WATER AND SEWAGE COMPANIES VIA DATA ENVELOPMENT ANALYSIS / AVALIAÇÃO DA EFICIÊNCIA GERENCIAL DE EMPRESAS DE ÁGUA E ESGOTOS BRASILEIRAS POR MEIO DA ENVOLTÓRIA DE DADOS (DEA)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

This thesis seeks to test the applicability of the DEA (Data Envelopment Analysis) methodology for assessing the managerial efficiency of Brazilian water and sewage companies. This objective was pursued by evaluating the efficiency of the 71 largest companies of water services in Brazil, in terms of the number of properties served. Additionally, the companies were ranked according to their relative efficiency, and for each inefficient company it was estimated how much increase in each one of the outputs would be necessary for rendering it efficient. The text presents a brief history of the sanitation sector in Brazil, and reviews the basic DEA concepts and models necessary for understanding the analyses.The DEA was performed on the data collected by the Sistema Nacional de Informações sobre Saneamento (Brazilian National Sanitation Information System). The results were interpreted stressing the potential of DEA for generating performance indicators useful for public policies and funding agencies. Further analyses were made in order to test the validity of the model, detect likely economies of scale and to assess the robustness of the results.The results suggest that DEA can be adequate for analyzing the target industry, and for contributing to public policy formation and funding decisions by offering relevant indicators for setting improvement goals.

ASSUNTO(S)

analise da envoltoria de dados sanitation mathematical programming efficiency analysis empresas de agua avaliacao de eficiencia saneamento dea dea data envelopment analysis programacao matematica water companies

ACESSO AO ARTIGO

Documentos Relacionados