Privatization of a public good (the management of sewage treatment centers in Dakar, Senegal) leads to an increase in the productivity of downstream sewage dumping companies and a decrease in downstream prices of the services they provide to households. We use the universe of legal dumps of...

This paper compares water and sanitation services in municipalities that entered into a concession arrangement with a private operator versus those in a comparable control group of municipalities that continued with a public operator, and we explore five variables of interest: (i) water coverage;...

Poor household water supply and sanitation can affect maternal and newborn health outcomes through several pathways, including the quality of drinking water consumed by pregnant woman and exposure to harmful fecal pathogens in the environment due to poor quality sanitation. Using data on 14,098...

Coronavirus disease 2019 (COVID-19), caused by Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has been declared as a global pandemic by the World Health Organization (WHO). As the disease is highly infectious, the Global South countries are in a vulnerable situation with high...

Decentralisation promises efficiency gain and improved access to public goods and services, especially at the local level. Under decentralised governance arrangement, regional and environmental peculiarities are given prominent consideration in delivering public goods and services. Given the...

In 2010, the United Nations General Assembly recognized access to safe water and sanitation infrastructure a matter of human right. This right is reflected in Sustainable Development Goal 6, whose targets 1 and 2 point to universal access to safe and affordable drinking water and adequate...

Since 1990, 2.1 billion people in the world gained access to improved sanitation. However, 2.4 billion people still do not use a basic toilet. We examine whether the country differences in the sanitation index existing in 1990 has been reduced and if so, how fast. We deploy the convergence...

This report presents the final results of the impact evaluation of two of WaterAid Nigeria's main interventions within the programme "Sustainable Total Sanitation Nigeria - implementation, learning, research, and influence on practice and policy" (STS Nigeria project for short). The impact...

We study the effectiveness of a community-level information intervention aimed at reducing open defecation (OD) and increasing sanitation investments in Nigeria. The results of a cluster-randomized control trial conducted in 247 communities between 2014 and 2018 suggest that average impacts are...

The Water Supply, Sanitation, and Hygiene (WASH) Poverty Diagnostic (PD) in Niger is part of a global initiative to improve evidence on the linkages between WASH and poverty. The Diagnostic provides a detailed analysis of sector status, strengths, and weaknesses to inform the attainment of the...

Since 2016 the World Bank has explored a wide range of country experiences in delivering better water supply and sanitation services. The analyses led to publication of three new global frameworks for designing water reforms: Policy, Institutional, and Regulatory Incentives, which looks at the...

While the coronavirus disease (COVID-19) pandemic reinforced the critical role that water supply and sanitation (WSS) plays in preventing its spread, it affected the financial stability of service providers in the industry. In response to demands from the client countries, the World Bank carried...

Privatization of a public good (the management of sewage treatment centers in Dakar, Senegal) leads to an increase in the productivity of downstream sewage dumping companies and a decrease in downstream prices of the services they provide to households. We use the universe of legal dumps of...

Regulations play a fundamental role in achieving public policy objectives, including the protection of human health and the environment, the fight against monopolies, or the efficient provision of water and sanitation services. Regulatory impact assessment (RIA) is an important tool for ensuring...

The world's population is expected to grow from 7.6 billion to 8.6 billion by 2030 and to 9.8 billion by 2050. A large proportion of this population growth is expected to occur in Africa where the population is expected to double from its current level of 1.3 billion by mid-century. Most of this...

Urban slum residents often have worse health outcomes compared with other urbanites and even their rural counterparts. This suggests that slum residents do not always benefit from the "urban advantage" of enjoying better access to health-promoting services. Limited access to water and sanitation...

This paper presents an overview and meta-analysis of the effects of water, sanitation, and hygiene interventions around the world. It is based on 136 impact evaluations (randomized and quasi-experimental studies) that explore the effects of water, sanitation, and hygiene interventions on health...

This summary report presents the findings of the Bangladesh WASH Poverty Diagnostic (BWPD) study led by the World Bank's Water and Poverty Global Practices. Though very few Bangladeshis now fetch water from rivers or defecate in fields, the vast majority still live in environments plagued by...

Poverty rates in Guatemala are among the highest in Latin America and the Caribbean, and Guatemala is now the second poorest country in the region, with only post-earthquake Haiti being poorer. Guatemala is an extreme outlier in the region in terms of chronic malnutrition, and almost half of all...

This policy note draws upon information collated during a diagnostic study on the state of household and institutional sanitation in rural and urban areas, and presents the barriers and drivers of improvement of sanitation in the country. Low median household incomes, which constrain investment...

The present report summarizes the evidence and findings from a series of studies and new data collection around water supply, sanitation, and hygiene (WASH) and poverty. This WASH poverty diagnostic was undertaken to increase our understanding of the linkages between monetary poverty and WASH...

Despite a substantial decline in poverty, an increase in access to water and sanitation and a large decline in open defecation, diarrhea and stunting rates in Pakistan show few signs of a decline. This report provides evidence that the policy focus on eliminating open defecation rather than the...

We study the effectiveness of a community-level information and mobilization intervention to reduce open defecation (OD) and increase sanitation investments in Nigeria. The results of a cluster-randomized control trial in 246 communities, conducted between 2014 and 2018, suggest that average...

The OECD and the Directorate-General for Environment, the European Commission department responsible for EU policy on the environment, joined forces to examine current and future water-related financing challenges faced by EU member states. These include investments needed to comply with EU...

The water supply and sanitation sector remains heavily subsidized around the world. Yet, the accounting of water supply and sanitation subsidies globally has proved challenging due to utility-level data limitations and their often implicit nature. This paper develops a methodology to estimate...