The paper presents the development and implementation of a geo-spatial model for mapping populations' access to specified types of water and sanitation services in Nigeria. The analysis uses geo-located, population-representative data from the National Water and Sanitation Survey 2015, along...

The main purpose of this paper is to argue that the optimal design of regulation of water and sanitation monopolies should be the outcome of a detailed diagnostic of the institutional constraints impacting the ability of the operator -- whether public or private -- to deliver the services....

Using household survey data, this paper estimates the mortality impact of improved water and sanitation access in order to evaluate the potential contribution of water and sanitation investment toward achieving the child mortality targets defined in Millennium Development Goal 4. The authors...