Eficiencia en la prestación de agua y saneamiento y su vinculación con regiones, propiedad e independencia de los prestadores en Brasil

Gustavo Ferro (Instituto de Economía UADE y CONICET)
Emilio J. Lentini (Centro de Estudios Transdisciplinarios del Agua, Instituto de la Universidad de Buenos Aires)
Augusto C. Mercadier (Universidad Nacional de La Plata)
Carlos A. Romero (Instituto de Economía UADE)

The purpose of this paper is to assess comparative efficiency in water and sanitation sector in Brazil. We run a Sthocastic Frontier Analysis model for a panel of 127 providers, covering more than 70% of urban population of the country. We search and find an explanation for cost efficiency, and we explore its interrelations with regions, property and independence of the providers. We use a database built on the SNIS (National System of Sanitation Statistics) to run a SFA cost model. We add to the formula, environmental and institutional variables, trying to capture differences in costs and efficiency attributable to the ambience of operation. We achieve a satisfactory model, showing a modest efficiency average, and we could patterns, even not well defined. The study has policy implications, in the discussion state-run versus municipal-run, public versus private, and corporitized versus dependent providers. The optimal industrial organization of the sector can be analyzed since the efficiency perspective.




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