Benchmarking South African water utilities using three efficiency analysis methods
EfD Authors:
This paper compares efficiency scores from the data envelopment analysis (DEA), stochastic frontier analysis (SFA), and stochastic non-parametric envelopment of data (StoNED) methods in the context of regulating South African water utilities. We estimate cost efficiency based on cross-sectional data from 102 South African water utilities in the period 2013/14. We compare the impact of methodological choices on the efficiency scores. For StoNED, we compare scores from two different estimation techniques (method of moments and pseudolikelihood).
Improving payment for essential services – A field experiment in Nairobi, Kenya
EfD Authors:
Abstract: Utilities across the global require stable revenue streams to provide customers access to high quality energy, water, sanitation, and other essential services. This requires policy makers to set prices to cover costs, promote the efficient use of resources, and ensure services are affordable. It also requires that customers pay their bills. Historically, utilities have used disconnections, or the threat of disconnection, to compel customers to pay their bills on time.
Collaboration between researchers and water company - winning recipe for impact
A team consisting of EfD Kenya, international associates, and the Nairobi City Water and Sewer Company has, over the last decade, collaborated to solve challenges related to providing and funding
Still Waters Run Deep: Groundwater Contamination and Education Outcomes in India
EfD Authors:
This study investigates the impact of groundwater contamination on educational outcomes in India, using variations in the geographical coverage and timing of safe government piped water schemes. The study is based on survey data from public schools in Assam, one of India’s most groundwater-contaminated regions. It is found that prolonged exposure to unsafe groundwater is linked to increased absenteeism, grade retention, and lower test scores and CGPA. Additionally, the researchers use a nationally representative household survey to study the effect of arsenic contamination.
Alternatives for improving Payment for Ecosystem Services (PES) effectiveness on water resources
EfD Authors:
Environmental Services include all contributions of nature to humans, and these are relative according to the context and the existence of alternatives (IPBES 2019). Ecosystem degradation jeopardizes the sustainable provision of these services. In this context, Payne for Ecosystem Services (PES) schemes arose as policy instruments that promote pro-environmental land use through financial incentives for actions that improve, maintain, or maximize the provision of ES (Kim et al. 2016).