This paper performs a literature update of quantitative studies of water and sanitation services (WSS). There are 190 studies which use cost or production functions to evaluate the performance of WSS utilities. The studies examine (1) the scale, scope or density economies of utilities in a...

Small Island Developing states (SIDs) present challenges for analysts and policy-makers attempting to strengthen island-nation infrastructure. This study applies lessons to one SID to illustrate how benchmarking can improve the performance of water utilities. The archipelago-nation of Cape Verde...

Cross-country comparisons avoid the unsteady equilibrium in which regulators have to balance between economies of scale and a sufficient number of remaining comparable utilities. By the use of Data Envelopment Analysis (DEA), we compare the efficiency of the drinking water sector in the...

This paper updates the literature on water utility benchmarking studies carried out worldwide, focusing on scale and scope economies. Using meta-regression analysis, the study investigates which variables from published studies influence these economies. Our analysis led to several conclusions....