A contingent valuation survey of Thai adults revealed that private demand for a hypothetical AIDS vaccine that is safe, has no side effects, and lasts 10 years, rises with income, the lifetime risk of…

Since 1999 a multilateral effort termed the Nile Basin Initiative has been underway among the Nile riparians to explore opportunities for maximizing the benefits of the river's waters through…

This paper investigates two complementary pieces of data on households’ demand for improved water services, coping costs and willingness to pay (WTP), from a survey of 1500 randomly sampled households…

This paper describes five alternative visions for cooperative Nile development in the hope that they will assist the Nile riparian countries in their search for both a consensus vision and sound…

This paper presents a typology of international rivers based on asymmetries in economic and political power among riparian states. This typology is then used, along with other factors such as the…

The water tariffs currently in use in most cities in South Asia are not accomplishing their principal objectives. They are not generating sufficient revenues to ensure that utilities can recover their…

Cooperative management and development of Africa’s international rivers holds real promise for greater sustainability and productivity of the continent’s increasingly scarce water resources and…

The private demand for a hypothetical vaccine that would provide lifetime protection against HIV/AIDS to an uninfected adult was measured in Guadalajara, Mexico, using the concept of willingness to…

Increasing block tariffs (IBTs), widely used in the developing world, are claimed to produce desirable income transfers, discourage wasteful use, promote economic efficiency, and assure access to…

This paper challenges the conventional wisdom that water and sanitation improvements and other preventive health interventions are always a wise economic investment. Costs and benefits are presented…