Person:
van den Berg, Caroline
Author Name Variants
Fields of Specialization
Water economics,
Public finance,
Monitoring and evaluation
Degrees
ORCID
Departments
Global Practice on Water
Externally Hosted Work
Contact Information
Last updated
January 31, 2023
Biography
Caroline van den Berg is working as a Lead Water Economist in the World Bank’s Global Water Practice, focusing mostly on the economics of water supply, wastewater, sanitation and irrigation water services. She has extensive experience in the preparation and implementation of investment and development policy operations, and in applied research projects – with a work experience that extends over more than 40 countries in Africa, Asia, Europe, Latin America and the Middle East. She works on cost-benefit analysis, financial analysis, monitoring and evaluation, benchmarking of utilities, regulation and pricing, energy efficiency in water projects and public finance mostly in relation to the water sector. She has published regularly in academic journals. Prior to joining the World Bank, she was a research economist, financial analyst and project economist in the private sector. She earned her M.A. in macroeconomics from the Erasmus University Rotterdam in the Netherlands and a Ph.D. in spatial sciences from the University of Groningen (The Netherlands).
Publication Search Results
1 - 10 of 19
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Publication
How "Natural" are Natural Monopolies in the Water Supply and Sewerage Sector? Case Studies from Developing and Transition Economies
(World Bank, Washington, DC, 2007-02)Using data from the International Benchmarking NETwork database, the authors estimate measures of density and scale economies in the water industry in four countries (Brazil, Colombia, Moldova, and Vietnam) that differ substantially in economic development, piped water and sewerage coverage, and characteristics of the utilities operating in the different countries. They find evidence of economies of scale in Colombia, Moldova, and Vietnam, implying the existence of a natural monopoly. In Brazil the authors cannot reject the 0 hypothesis of constant returns to scale. They also find evidence of economies of customer density in Moldova and Vietnam. The results of this study show that the cost structure of the water and wastewater sector varies significantly between countries and within countries, and over time, which has implications for how to regulate the sector. -
Publication
Getting the Assumptions Right : Private Sector Participation Transaction Design and the Poor in Southwest Sri Lanka
(World Bank, Washington, DC, 2006-10)The need for reform in urban water and sanitation service delivery is urgent. Countries are making moves to achieve reforms, bringing in changes to the way they manage utilities, charge for water, and regulate the sector. This paper investigates how a set of basic assumptions on service coverage, service levels, tariffs, and subsidies in the proposed transactions in southwest Sri Lanka held up against consumer preferences. This paper provides the background information and describes the main features of the survey data. The paper then discusses a set of features that were used in the initial transaction design. This is followed by information on the impact of the different household preferences on these transaction features, and what this means in term of redesigning these features to ensure that the transaction would be more pro-poor. Conclusions and policy recommendations follow in the final section of this report. -
Publication
Guidance Note : Public Expenditure Review from the Perspective of the Water and Sanitation Sector
(World Bank, Washington, DC, 2012-06)The objective of this guidance note: public expenditure review from the perspective of the water supply and sanitation sector is to provide World Bank staff with a body of knowledge and good practice guidelines to help them evaluate the allocation of public resources to water and sanitation services in a consistent manner and to increase their knowledge of public expenditure issues in the sector. This guidance note discusses the challenges that are specific to public expenditure management in water and sanitation and the difficulties often involved in identifying sector expenditures. The challenges particular to this sector stem from three factors. First, countries define water and sanitation differently (e.g., drainage may or may not be included, rural services may be considered separately). Second, responsibilities for water and sanitation policy are often divided horizontally across government ministries and agencies, vertically between national and local governments and functionally among the public, private, and non-governmental sectors. Third, the roles of these multiple actors may be unclear or overlapping. -
Publication
Investing in Water Infrastructure : Capital, Operations and Maintenance
(World Bank, Washington, DC, 2012-11)This paper provides background information for development practitioners in the water and other infrastructure sectors. It outlines the major challenges related to financing the gap in global water infrastructure, including those systems that provide urban and rural water supply, and sanitation and irrigation services. Water infrastructure finance includes costs for capital works as well as the operations and maintenance costs that motivate sustainable service delivery. Section one introduces the linkages between water infrastructure and growing global challenges, including food and energy security as well as climate change. Section two describes investment needs in the sector and details various traditional funding sources. Section three proposes a five step reform cycle for making better use of limited funding in the sector. Tools for making these improvements are outlined in section four. The paper concludes with section five, a summary of the challenges and recommendations for the way forward. -
Publication
The IBNET Water Supply and Sanitation Blue Book 2014 : The International Benchmarking Network for Water and Sanitation Utilities Databook
(World Bank Group, Washington, DC, 2014-08-06)Well-run water utilities play an important role in ending poverty and boosting shared prosperity. Consumers need reliable access to high quality and affordable water and sanitation services. To deliver these basic services efficiently and effectively requires high-performing utilities that are able to respond to urban growth, to connect with the poor, and to improve wastewater disposal practices. The IBNET Water Supply and Sanitation Blue Book 2014 summarizes the water sector status from 2006 to 2011. Since 2006, municipal water performance has improved despite accelerated urbanization and the impacts of triple crises (food, fuel, and financial). Overall coverage has increased and piped water and wastewater services became accessible to more people. An increasing number of utilities now actively handle the water billing, collection, and water management through metering. IBNET tools, such as data collection instruments and protocols, the IBNET database, and the IBNET tariff database, enable enhanced sharing of information on close to 4,500 utilities from more than 130 countries and territories. -
Publication
The Drivers of Non-Revenue Water : How Effective are Non-Revenue Water Reduction Programs?
(World Bank Group, Washington, DC, 2014-08)To many, reducing water losses is seen as key to more sustainable water management. The arguments to reduce water losses are compelling, but reducing water losses has turned out to be challenging. This paper applies a panel data analysis with fixed effects to determine the major drivers of non-revenue water, which is define as the volume of water losses per kilometer of network per day. The analysis uses data from the International Benchmarking Network for Water and Sanitation Utilities, covering utilities in 68 countries between 2006 and 2011. The analysis finds that non-revenue water is driven by many factors. Some of the most important drivers are beyond the control of the utility, such as population density per kilometer of network, the type of distribution network, and the length of the network, which are largely the result of urbanization and settlement patterns in the localities that the utility serves. The opportunity costs of water losses are also key in explaining what drives non-revenue water. The paper finds that very low opportunity costs of water losses have an adverse effect on the reduction of non-revenue water. Country fixed effects turn out to be important, meaning that the environment in which the utility operates has an important impact on non-revenue water levels. An important conclusion is that the design of non-revenue water reduction programs should study the main drivers of non-revenue water to provide utility managers with a better understanding of what can be achieved in terms of non-revenue water reduction and whether the benefits of these reductions exceed their costs. -
Publication
The IBNET Water Supply and Sanitation Performance Blue Book
(World Bank, 2011)The International Benchmarking Network for Water and Sanitation Utilities (IBNET) blue book creates a baseline and, at the same time, offers a global vision of the state of the sector in developing countries. By tracking progress in and quantifying and assessing the water supply and sanitation sectors, IBNET helps meet the goal of providing safe, sustainable, and affordable water and sanitation for all. This report serves three purposes. First, it aims to raise awareness of how IBNET can help utilities identify ways to improve urban water and wastewater services. Second, it provides an introduction to benchmarking and to IBNET's objectives, scope, focus, and some recent achievements. Third, it elaborates the methodology and data behind IBNET and presents an overview of IBNET results and country data. By providing comparative information on utilities' costs and performance, IBNET and this study can be used by a wide range of stakeholders, including: 1) utilities: to identify areas of improvement and set realistic targets; 2) governments: to monitor and adjust sector policies and programs; 3) regulators: to ensure that adequate incentives are provided for improved utility performance and that consumers obtain value services; 4) consumers and civil society: to express valid concerns; 5) international agencies and advisers: to perform an evaluation of utilities for lending purposes; and 6) private investors: to identify opportunities and viable markets for investments. -
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Heterogeneity in the Cost Structure of Water and Sanitation Services : A Cross-Country Comparison of Conditions for Scale Economies
( 2010)The main purpose of this article is to compare the cost structure of water utilities across a set of 14 countries with different levels of economic development. As far as is known, the cross-country perspective is novel in this literature. This article first provides new measures of returns to scale in the water and sanitation sector for a set of countries, most of them from the developing world. It is then shown that the probability of a utility operating under decreasing, constant, or increasing returns to scale depends not only on its characteristics (the volume of water produced in particular), but also on the country's level of economic development (gross national income) and business environment as measured by investor protection, the cost of enforcing contracts and perceptions of corruption. -
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Demand for Piped and Non-piped Water Supply Services : Evidence from Southwest Sri Lanka
( 2009)In many countries, water supply is a service that is seriously underpriced, especially for residential consumers. This has led to a call for setting cost recovery policies to ensure that the tariffs charged for water supply cover the full cost of service provision. Identification of factors driving piped and non-piped water demand is a necessary prerequisite for predicting how consumers will react to such price increases. Using cross-sectional data of 1,800 households from Southwest Sri Lanka, we estimate water demand functions for piped and non-piped households using appropriate econometric techniques. The (marginal) price elasticity is estimated at -0.15 for households exclusively relying on piped water, and at -0.37 for households using piped water but supplementing their supply with other water sources. The time cost elasticity for households relying on non-piped water only is estimated at -0.06 on average, but varying across sources. For both piped and non-piped households, we find evidence of substitutability between water from different sources. We discuss the implications of these results in terms of pricing policy. -
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Economies of Density, Scale and Scope in the Water Supply and Sewerage Sector: A Study of Four Developing and Transition Economies
( 2008)Using panel data, we estimate measures of density, scale and scope economies in four countries that differ substantially in their levels of economic development and in their piped water and sewerage coverage: Brazil, Moldova, Romania and Vietnam. We find evidence of economies of scale in Moldova, Romania and Vietnam. In Brazil, we cannot reject the null hypothesis of constant returns to scale. The results of this study show that the cost structure of water and sewerage utilities varies significantly within and between countries and over time.