Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.

Evaluating the performance and analyzing the cost drivers of water utilities is of great interest for water regulators and water sector managers. This study uses a quadratic cost function to investigate the existence of economies of scale and scope in the Chilean water and sewerage industry over the...

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Autores principales:	Maria Molinos-Senante, Alexandros Maziotis
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/56368c6a939e4a61b8ddfb75406f1745
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spelling	oai:doaj.org-article:56368c6a939e4a61b8ddfb75406f17452021-11-25T06:19:01ZProductivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.1932-620310.1371/journal.pone.0251874https://doaj.org/article/56368c6a939e4a61b8ddfb75406f17452021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251874https://doaj.org/toc/1932-6203Evaluating the performance and analyzing the cost drivers of water utilities is of great interest for water regulators and water sector managers. This study uses a quadratic cost function to investigate the existence of economies of scale and scope in the Chilean water and sewerage industry over the period 2010-2017. We also estimate and decompose productivity growth into technical change and scale efficiency change. Technical change is further broken into pure, non-neutral and scale-augmenting technical change. The results indicate that cost savings can be achieved by increases in the scale of production and the separation of water and sewerage services. Productivity progressed favorably throughout the whole period at an annual rate of 8.4%, which was attributed to the scale effect, the adoption of new technologies and a good allocation of resources. Some policy implications are finally discussed based on our findings.Maria Molinos-SenanteAlexandros MaziotisPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251874 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maria Molinos-Senante Alexandros Maziotis Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
description	Evaluating the performance and analyzing the cost drivers of water utilities is of great interest for water regulators and water sector managers. This study uses a quadratic cost function to investigate the existence of economies of scale and scope in the Chilean water and sewerage industry over the period 2010-2017. We also estimate and decompose productivity growth into technical change and scale efficiency change. Technical change is further broken into pure, non-neutral and scale-augmenting technical change. The results indicate that cost savings can be achieved by increases in the scale of production and the separation of water and sewerage services. Productivity progressed favorably throughout the whole period at an annual rate of 8.4%, which was attributed to the scale effect, the adoption of new technologies and a good allocation of resources. Some policy implications are finally discussed based on our findings.
format	article
author	Maria Molinos-Senante Alexandros Maziotis
author_facet	Maria Molinos-Senante Alexandros Maziotis
author_sort	Maria Molinos-Senante
title	Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
title_short	Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
title_full	Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
title_fullStr	Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
title_full_unstemmed	Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.
title_sort	productivity growth, economies of scale and scope in the water and sewerage industry: the chilean case.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/56368c6a939e4a61b8ddfb75406f1745
work_keys_str_mv	AT mariamolinossenante productivitygrowtheconomiesofscaleandscopeinthewaterandsewerageindustrythechileancase AT alexandrosmaziotis productivitygrowtheconomiesofscaleandscopeinthewaterandsewerageindustrythechileancase
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Productivity growth, economies of scale and scope in the water and sewerage industry: The Chilean case.

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