Search results for "Water company"
showing 6 items of 6 documents
Dynamic goal programming synthetic indicator: an application for water companies sustainability assessment
2018
ABSTRACTThis study proposes to evaluate the sustainability of water companies through time by using a new approach, one that involves a dynamic synthetic indicator derived from goal programming techniques. This dynamic indicator approach incorporates catch-up and innovation indices, which enables one to identify the main factors that drive changes in sustainability through time. We used a case study approach to clarify this dynamic approach by evaluating indicator values from a sample of 129 Portuguese water companies over the 2012 to 2015 time period. For most of the water companies we evaluated, sustainability values changed over time, which illustrates the importance of evaluating dynami…
Enhancing strategy design and planning in public utilities through “dynamic” balanced scorecards: insights from a project in a city water company
2008
In the last decade there has been an increasing effort to provide public utilities managers with planning and control tools, to take into account not only operational but also strategic issues. Among them are customer satisfaction, internal business process efficiency, business image, and bargaining power against other counterparts (e.g., the municipal administration). Often, however, such an effort has been oriented to generate a large volume of data, focused only on financial indicators and on a static view of the relevant system. This paper shows how the use of “dynamic” balanced scorecards can significantly improve the planning process in a strategic learning perspective. Insights from …
¿Está relacionada la eficiencia en el servicio urbano de agua con la titularidad del gestor?
2015
El presente estudio tiene como objetivo realizar una revisión de la literatura acerca de qué forma de titularidad de los servicios de agua urbana, pública o privada, se muestra superior en términos de eficiencia. Con el fi n de arrojar luz sobre esta cuestión hemos realizado, en primer lugar, un análisis de la situación de la industria a nivel internacional. A continuación se ofrece una exposición de los principales argumentos a favor y en contra de la privatización para finalizar con el examen de la evidencia empírica al respecto. La revisión efectuada no nos permite concluir que alguna de las formas de gestión se muestre indiscutiblemente superior en términos de eficiencia. Sin embargo, e…
Water company productivity change: A disaggregated approach accounting for changes in inputs and outputs
2021
Abstract The assessment of the productivity change of water utilities provides essential information to sector managers and regulators. This study uses the Luenberger-Hicks-Moorsteen Productivity Indicator (LHMPI) to evaluate productivity change as it can be further decomposed into three components namely technical change (TC), technical efficiency change (TEC), and scale efficiency change (SEC). This study evaluates the productivity of several water companies in England and Wales from 2001 to 2018. We found that productivity declined 1.2% per year due to the use of inputs that increased by 1.4% per year relative to outputs that increased by 0.2% per year.
Impact of external costs of unplanned supply interruptions on water company efficiency: Evidence from Chile
2020
Abstract Conventional performance assessments of water companies ignore the external costs due to water supply outages. To overcome this gap, we evaluate the impact of external costs of unplanned supply interruptions on the efficiency of water companies. Two efficiency metrics, internal technical efficiency (ITE), and total technical efficiency (TTE), were estimated based on data envelopment analysis (DEA). The results evidence that the external costs of unplanned water supply interruptions impact, on average, 7.9% of the efficiency of water companies. We also explored the impact of a set of environmental variables on water company efficiency.
Assessing the efficiency of Chilean water and sewerage companies accounting for uncertainty
2016
Abstract Efficiency assessment of water and sewerage companies (WaSCs) has attracted considerable attention both for water company managers and water regulators. Within the methodological approaches that can be applied to estimate efficiency scores, data envelopment analysis (DEA) is the most widely applied technique. In spite of the positive features of DEA, it presents a major drawback which is its deterministic nature. In other words, conventional DEA models do not account for uncertainty in the data. To overcome this limitation, we assess, for the first time, the efficiency of a sample of Chilean WaSCs by using a DEA model with statistical tolerance in the data. Hence, 81 efficiency sco…