This article investigates the impact of piped water supply and sanitation on health outcomes in urban Yemen using a combination of quasi-experimental methods and results from microbiological water tests. Variations in project roll-out allow separate identification of water and sanitation...

This paper investigates why household connections to piped water supply can increase diarrheal diseases among under-5-year-old children. Using a unique mix of household data, microbiological test results and spatial information from urban Yemen it is possible to distinguish the adverse impacts...