O impacto da regulação sobre a eficiência dos prestadores de serviços de água e esgoto no Brasil
type: CreativeWork
description: In Brazil, some of the critical problems of the sanitation sector are the relevant deficit of water and sewage services, the difficulty of water and sewerage companies (WaSCs) to carry out investments and the existence of operating and maintenance inefficiencies. As an alternative to overcome these issues, the new regulatory framework, enacted in 2007, strengthened regulation and established among its regulatory objectives the universal access and water and sewerage systems efficiency. In this sense, this thesis aims to analyze the impact of regulation on the WaSCs efficiency in Brazil. To this end, we configured a data envelopment analysis (DEA) model unprecedented for the sector, which allows the evaluation of the overall dynamic efficiency and it also allows the evaluation of internal structures efficiency of WaSCs, through a network consisting of 3 interconnected divisions to reflect the regulatory objectives: 1) Expansion/Improvement of Water System; 2) Expansion/Improvement of Sewerage System; and 3) Operation/Maintenance of Water and Sewerage Systems. We ran a Dynamic and Network DEA model for 156 WaSCs in the period 2006-2015 and the results indicated low levels of overall efficiency. The Expansion/Improvement of Water System division achieved the best average efficiency scores, followed by the Operation/Maintenance of Water and Sewerage Systems division and the Expansion/Improvement of Sewerage System division. Regulated WaSCs presented better efficiency measures in the case of Expansion/Improvement of Water System and Operation/Maintenance of Water and Sewerage Systems divisions. In the second stage of the research, a content analysis of the standards issued by 52 regulators identified the presence of regulatory incentives in six proposed thematic categories: 1) Tariff regime; 2) Updating tariffs levels; 3) Systems expansion and improvement; 4) General standards and quality of services provision; 5) Management; and 6) Transparency and accountability. The c…
abstract: In Brazil, some of the critical problems of the sanitation sector are the relevant deficit of water and sewage services, the difficulty of water and sewerage companies (WaSCs) to carry out investments and the existence of operating and maintenance inefficiencies. As an alternative to overcome these issues, the new regulatory framework, enacted in 2007, strengthened regulation and established among its regulatory objectives the universal access and water and sewerage systems efficiency. In this sense, this thesis aims to analyze the impact of regulation on the WaSCs efficiency in Brazil. To this end, we configured a data envelopment analysis (DEA) model unprecedented for the sector, which allows the evaluation of the overall dynamic efficiency and it also allows the evaluation of internal structures efficiency of WaSCs, through a network consisting of 3 interconnected divisions to reflect the regulatory objectives: 1) Expansion/Improvement of Water System; 2) Expansion/Improvement of Sewerage System; and 3) Operation/Maintenance of Water and Sewerage Systems. We ran a Dynamic and Network DEA model for 156 WaSCs in the period 2006-2015 and the results indicated low levels of overall efficiency. The Expansion/Improvement of Water System division achieved the best average efficiency scores, followed by the Operation/Maintenance of Water and Sewerage Systems division and the Expansion/Improvement of Sewerage System division. Regulated WaSCs presented better efficiency measures in the case of Expansion/Improvement of Water System and Operation/Maintenance of Water and Sewerage Systems divisions. In the second stage of the research, a content analysis of the standards issued by 52 regulators identified the presence of regulatory incentives in six proposed thematic categories: 1) Tariff regime; 2) Updating tariffs levels; 3) Systems expansion and improvement; 4) General standards and quality of services provision; 5) Management; and 6) Transparency and accountability. The c…
author: Carvalho, Anne Emilia Costa
language: por
keywords: Água e esgoto no Brasil, Regulação, Incentivos, Eficiência, DEA Dinâmico e de redes
date published: 2017-07-07
date modified: 2026-07-24T01:20:54Z
provider: Brazil UFRN
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Brasil