Effective sharing mechanisms of joint costs among beneficiaries of a project are a fundamental requirement for the sustainability of the project. Projects that are heterogeneous both in terms of the landscape of the area under development or the participants (users) lead to a more complicated...

Water supply is essential for growth, as well as for social well-being. It is probably the most difficult of all infrastructure services to substitute, and its absence or deficiency represents a particular burden on the poor. In the developing world, 2 out of every 10 people lack access to a...