What is it about?
A paper investigates the robustness of efficiency assessment between empirical and non-parametric methods (specifically data envelopment analysis) aiming at promoting a method that improves urban water utility performance through sharing of management strategies between urban water utilities within or between countries. The consistency analysis involves the empirical method employed by the Energy and Water Utilities Regulatory Authority of Tanzania, standard DEA and Network DEA. The assessment shows that network DEA is the BEST for an urban water utility efficiency assessment and management specific goal improvement.
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Why is it important?
This study allows regulators who applying the proposed methodology to identify a utility with quality management strategies and share between utilities or countries that apparently improves utility performances. Moreover, the proposed methodology removes a chance of favouritism caused by assumptions used in many empirical methods to benchmark a utility efficiency.
Perspectives
I recommend regulators to use network DEA model proposed in this study to regulate urban water utilities. The proposed methodology allows water utilities from different countries to share and simulate quality management strategies that apparently improve water services delivery environmentally, economically and the most important, social trust.
Eng. Dr Dickson K. Gidion
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This page is a summary of: Consistency in efficiency benchmarking: urban water utility regulation with performance improvement, Water Science & Technology Water Supply, May 2019, IWA Publishing,
DOI: 10.2166/ws.2019.072.
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