In this report, the authors develop and estimate a model of household defensive behavior and illness. Using cross-section data from a household survey in Jakarta, they observe defensive behavior (washing hands after using the toilet) consistent with expectations: defensive effort intensifies...

As water scarcity and population pressures increase, more countries are adopting water pricing mechanisms, as their primary means of regulating the consumption of irrigation water. The way to allocate water efficiently is to"get the prices right", but how to accomplish this is open to debate....

Compared with other urban water systems in West Africa, the water supply system in Abidjan performs very well. Documenting the recent history of that system, the authors try to answer three questions: What motivated reform in a system that was already performing well? How and why did the reform...

The authors describe and analyze a nongovernmental, multi-stakeholder, consensus-based approach to river basin management in the Fraser River basin in Canada. The Fraser River drains 238,000 km2 of British Columbia, supporting nearly 3 million residents and a diverse economy. Water management...

The signing of a concession contract for the Buenos Aires water and sanitation system in December 1992, attracted worldwide attention, and caused considerable controversy in Argentina. It was one of the world's largest concessions, but the case was also interesting for other reasons. The...

The case in Mexico City offered an opportunity to observe the advantages, and disadvantages of gradualist reform. Unfortunately, the authors find that the long-term nature of an incremental approach does not match well with the generally shorter-term horizons of elected politicians. Difficult...

This paper provides an overview of approaches to the economic regulation of piped water supply and sewerage systems. The discussion emphasizes the particular importance that quality issues take on in water systems relative to any other infrastructure sector. Water quality is obviously important...

Introducing private sector participation (PSP) into the water and sewerage sectors in developing countries is difficult and controversial. Empirical studies on its effects are scant and generally inconclusive. Case studies tend to find improvements in the sector following privatization, but they...

The authors analyze the determinants of the efficiency levels reached by twenty one African water utilities. They assess efficiency through the estimation of a production frontier for the sector in Africa. The efficiency estimates confirm much of the common perceptions from partial productivity...

The authors describe and analyze the emergence of river basin management in the Warta River Basin of Poland. The Warta basin's 55,193 km2 cover approximately one-sixth of Poland, and the Warta is a principal tributary to the Oder. Water management issues include pollution of the Warta and its...