Publication: Reconceptualizing Global Multidimensional Poverty Measurement, with Illustration on Nigerian Data
Loading...
Date
2023-10-03
ISSN
Published
2023-10-03
Author(s)
Editor(s)
Abstract
Multidimensional poverty measures can in theory make well-being comparisons that are less biased than those solely based on monetary poverty. However, global multidimensional poverty measures suffer in practice from limitations that have led to credible criticisms. This paper presents the case for multidimensional poverty measures, two criticisms against their current implementations, as well as recently proposed solutions to improve on these criticisms. The paper develops a method for implementing these solutions in practice. The resulting well-being indicator is used to compare well-being across Nigerian states in 2019. This empirical illustration suggests that these solutions may substantially affect well-being comparisons. The paper also quantifies the potential bias inherent to comparing well-being solely based on monetary poverty. The results find substantially different well-being comparisons between the proposed well-being indicator and monetary poverty even though monetary poverty was (i) high in Nigeria in 2019 and (ii) very heterogeneously distributed across Nigerian states; and (iii) is integrated as one component of the proposed well-being indicator. The paper aims to improve global multidimensional poverty measures by making them more consistent with preference theory and by incorporating the direct impact of mortality, which deprives individuals of the most important functioning.
Link to Data Set
Citation
“Decerf, Bonoit; Fonton, Kike. 2023. Reconceptualizing Global Multidimensional Poverty Measurement, with Illustration on Nigerian Data. Policy Research Working Paper; 10577. © World Bank. http://hdl.handle.net/10986/40424 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Publication The Macroeconomic Implications of Climate Change Impacts and Adaptation Options(Washington, DC: World Bank, 2025-05-29)Estimating the macroeconomic implications of climate change impacts and adaptation options is a topic of intense research. This paper presents a framework in the World Bank's macrostructural model to assess climate-related damages. This approach has been used in many Country Climate and Development Reports, a World Bank diagnostic that identifies priorities to ensure continued development in spite of climate change and climate policy objectives. The methodology captures a set of impact channels through which climate change affects the economy by (1) connecting a set of biophysical models to the macroeconomic model and (2) exploring a set of development and climate scenarios. The paper summarizes the results for five countries, highlighting the sources and magnitudes of their vulnerability --- with estimated gross domestic product losses in 2050 exceeding 10 percent of gross domestic product in some countries and scenarios, although only a small set of impact channels is included. The paper also presents estimates of the macroeconomic gains from sector-level adaptation interventions, considering their upfront costs and avoided climate impacts and finding significant net gross domestic product gains from adaptation opportunities identified in the Country Climate and Development Reports. Finally, the paper discusses the limits of current modeling approaches, and their complementarity with empirical approaches based on historical data series. The integrated modeling approach proposed in this paper can inform policymakers as they make proactive decisions on climate change adaptation and resilience.Publication Global Poverty Revisited Using 2021 PPPs and New Data on Consumption(Washington, DC: World Bank, 2025-06-05)Recent improvements in survey methodologies have increased measured consumption in many low- and lower-middle-income countries that now collect a more comprehensive measure of household consumption. Faced with such methodological changes, countries have frequently revised upward their national poverty lines to make them appropriate for the new measures of consumption. This in turn affects the World Bank’s global poverty lines when they are periodically revised. The international poverty line, which is based on the typical poverty line in low-income countries, increases by around 40 percent to $3.00 when the more recent national poverty lines as well as the 2021 purchasing power parities are incorporated. The net impact of the changes in international prices, the poverty line, and new survey data (including new data for India) is an increase in global extreme poverty by some 125 million people in 2022, and a significant shift of poverty away from South Asia and toward Sub-Saharan Africa. The changes at higher poverty lines, which are more relevant to middle-income countries, are mixed.Publication Geopolitical Fragmentation and Friendshoring(Washington, DC: World Bank, 2025-06-26)This paper examines the relationship between geopolitical fragmentation and friendshoring of foreign investments over time, countries, and sectors. The analysis uses comprehensive data on foreign direct investments covering greenfield projects, mergers and acquisitions, and stocks of affiliates, as well as data on four alternative measures of geopolitical distance between countries. The gravity estimations suggest that, first, geopolitical differences have a negative effect on foreign investments and the magnitude has heightened in the post-pandemic period compared to a decade ago. Second, it is primarily the companies from advanced Western economies whose foreign investment decisions are increasingly shaped by friendshoring forces. Finally, the paper shows that friendshoring is not only confined to strategic industries, implying that allocations of foreign direct investments may not solely reflect national security or resilience considerations.Publication Soaring Food Prices Threaten Recent Economic Gains in the EU(Washington, DC: World Bank, 2025-07-02)The surge in food prices following the 2021 economic rebound has become a significant concern for households, particularly low-income ones, in Bulgaria, Croatia, Poland, and Romania. Food price inflation, which surpasses general inflation rates, risks worsening poverty and food insecurity in these countries. This paper explores the distributional impacts of rising food prices and the effectiveness of government response measures. Low-income households, who allocate a larger share of their income to food, are disproportionately affected and are struggling to cope with unexpected expenses, leading to increased difficulties in accessing proper nutrition. Simulations indicate that rising food prices contribute to higher poverty rates and greater income inequality, especially among vulnerable populations. They also suggest that the main poverty-targeted social assistance schemes offer critical support for the extreme poor, but expanding both coverage and benefits is vital to shield all at-risk individuals. Targeted policies that balance immediate relief with long-term resilience-building are essential to addressing the challenges posed by escalating food prices.Publication Disentangling the Key Economic Channels through Which Infrastructure Affects Jobs(Washington, DC: World Bank, 2025-04-03)This paper takes stock of the literature on infrastructure and jobs published since the early 2000s, using a conceptual framework to identify the key channels through which different types of infrastructure impact jobs. Where relevant, it highlights the different approaches and findings in the cases of energy, digital, and transport infrastructure. Overall, the literature review provides strong evidence of infrastructure’s positive impact on employment, particularly for women. In the case of electricity, this impact arises from freeing time that would otherwise be spent on household tasks. Similarly, digital infrastructure, particularly mobile phone coverage, has demonstrated positive labor market effects, often driven by private sector investments rather than large public expenditures, which are typically required for other large-scale infrastructure projects. The evidence on structural transformation is also positive, with some notable exceptions, such as studies that find no significant impact on structural transformation in rural India in the cases of electricity and roads. Even with better market connections, remote areas may continue to lack economic opportunities, due to the absence of agglomeration economies and complementary inputs such as human capital. Accordingly, reducing transport costs alone may not be sufficient to drive economic transformation in rural areas. The spatial dimension of transformation is particularly relevant for transport, both internationally—by enhancing trade integration—and within countries, where economic development tends to drive firms and jobs toward urban centers, benefitting from economies scale and network effects. Turning to organizational transformation, evidence on skill bias in developing countries is more mixed than in developed countries and may vary considerably by context. Further research, especially on the possible reasons explaining the differences between developed and developing economies, is needed.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication Normative Indicators Combining Poverty and Mortality(World Bank, Washington, DC, 2022-05)This paper surveys the small branch of welfare economics that studies indicators combining poverty and mortality. The paper distinguishes two reasons for constructing such indicators. The first reason is to perform multidimensional well-being comparisons. For this purpose, mortality has (negative) intrinsic value. The key question relates to the trade-off that the indicator makes between poverty and mortality, that is, between the quality and quantity of life. A lifecycle utility approach suggests expressing this trade-off as the number of years spent in poverty that is deemed equivalent to one year lost to mortality. The second reason is to investigate the instrumental role that selective mortality—the fact that the poor tend to die earlier—has on the evolution of poverty measures. Then, the key question is how to define the counterfactual situation against which the instrumental impact of mortality is assessed.Publication A Welfarist Theory Unifying Monetary and Non-Monetary Poverty Measurement(World Bank, Washington, DC, 2022-06)Multidimensional poverty measures are increasingly used in practice even though they face strong criticism and generate longlasting debates. These contentions primarily find their origin in the divergence between standard poverty identification practices and a welfarist definition of the poor. This paper fills this gap by constructing a poverty measurement theory that (i) adopts a welfarist definition of the poor, (ii) acknowledges that the relevant welfare function is only partially known and (iii) encompasses both market and non-market dimensions of well-being. The theory shows that standard identification practices are not flexible enough in order to properly account for the multidimensional nature of well-being. This nature implies that an individual is poor when she experiences an extremely low outcome in some dimension or/and when she cumulates moderately low outcomes in several dimensions. The paper proposes a simple refinement that better reflects this insight. The paper uses the theory in order to provide answers to several longlasting debates. The theory provides a conceptual foundation from which practitioners may derive guidance for the many choices they face.Publication April 2022 Update to the Multidimensional Poverty Measure(World Bank, Washington, DC, 2022-05)The April 2022 update presents the 3rd edition of the World Bank’s Multidimensional Poverty Measure (MPM), based on updates to the Global Monitoring Database (GMD). The MPM is an index that captures the percentage of households in a country deprived along three dimensions of well-being – monetary poverty, education, and basic infrastructure services – to provide a more complete picture of poverty. The latest MPM data provides country estimates for 123 economies in the GMD circa 2018, revising estimates published in March 2021. Some changes reflect the availability of more recent survey data. Other changes are due to the addition of new economies to the dataset, the release of new population data, and new monetary poverty estimates. The accompanying online dashboard containing the data and results presented in this document has also been updated. The dashboard allows users to visualize MPM data and modify the weights used when aggregating the different indicators in the MPM headcount ratio.Publication Integrating Mortality into Poverty Measurement through the Poverty Adjusted Life Expectancy Index(World Bank, Washington, DC, 2022-07)Poverty measures typically do not account for mortality, resulting in counter-intuitive evaluations. The reason is that they (i) suffer from a mortality paradox and (ii) do not attribute intrinsic value to the lifespan. The paper proposes the first poverty index that always attributes a positive value to lifespan and does not suffer from the mortality paradox. This index, called the poverty-adjusted life expectancy, follows an expected lifecycle utility approach a la Harsanyi and is based on a single normative parameter that transparently captures the trade-off between poverty and mortality. This indicator can be straightforwardly generalized to account for unequal lifespans. Empirically, we show that accounting for mortality substantially changes cross-country comparisons and trends. The paper also quantifies the fraction of these comparisons that are robust to the choice of the normative parameter.Publication Multidimensional Well-Being Measurement Practices(Washington, DC: World Bank, 2024-06-12)Multidimensional well-being indicators have the potential to reduce the “bias” associated to monetary indicators. However, they face stringent data constraints. This paper studies the construction of indicators that strike a balance between (i) reliability in approximating conceptually sound well-being comparisons and (ii) simplicity of application and communication. The recommendations focus on global multidimensional poverty measures. The paper identifies three potential sources of improvements: “wasting” less data, better filtering the data, and further developing multidimensional analysis. Less information would be “wasted” by avoiding needlessly dichotomizing all the variables, using the available mortality data, and combining variables from separate surveys. To filter the data better, “equal weights” could be replaced by weights selected from external information on preferences. When the data permit, the unit of analysis should be switched from household level to individual level. Finally, multidimensional indicators should be used to help move beyond a suboptimal “dimension-by-dimension” approach to policy making.
Users also downloaded
Showing related downloaded files
Publication Fiscal Incidence Analysis for Kenya(World Bank, Washington, DC, 2018-06-29)Kenya has made satisfactory progress in reducing poverty and inequality in recent years. Economic growth in Kenya between 2005-06 and 2015-16 averaged around 5.3 percent, exceeding the average growth of 4.9 percent observed for Sub-Saharan Africa. This robust economic growth resulted in a reduction in poverty, whether measured by the national or international poverty line. The proportion of the population living beneath the national poverty line fell from 46.8 percent in 2005-06 to 36.1 percent in 2015-16, showing a modest improvement in the living standards of the Kenyan population. Similarly, poverty under the international poverty line of US$ 1.90 a day declined from 43.6 percent in 2005-06 to 35.6 percent in 2015-16. At this level, poverty in Kenya is below the average in sub-Saharan Africa and is amongst the lowest in the East African Community (World Bank, 2018b). However, the proportion of the population living in poverty remains comparatively high in Kenya and the rate at which growth translated into poverty reduction was lower than elsewhere. At twice the average, Kenya’s poverty rate is still high for a lower-middle income country, a group that Kenya joined only in 2015. In addition, the Kenya’s growth elasticity of poverty reduction, the percentage reduction in the poverty rate associated with a one-percent increase in mean per capita income is only 0.57, lower than in Tanzania, Ghana, or Uganda (World Bank, 2018b). This leads to the obvious question of what can be done to make economic growth more pro-poor in Kenya. This study assesses the distributional consequences of Kenya’s system of taxes and transfers, covering 60 percent of revenue and between 25 and 30 percent of government spending. The analysis of fiscal incidence and distributional consequences of Kenya’s tax and transfer system is an important input for designing pro-poor policies and potentially for influencing the rate at which economic growth translates into poverty reduction. In this study, direct taxes and transfers, indirect taxes (VAT and excise duties), as well as public health and education spending are assessed in terms of their distributional impacts. Overall, these taxes and transfers account for about 60 percent of revenue and between 25 and 30 percent of government spending.Publication Making Devolution Work for Service Delivery in Kenya(Washington, DC: World Bank, 2022-02)Kenya adopted a new constitution and began the process of devolution in 2010, ceding many formerly national responsibilities to new county governments. As an institutional response to longstanding grievances, this radical restructuring of the Kenyan state had three continuing main objectives: decentralizing political power, public sector functions, and public finances; ensuring a more equitable distribution of resources among regions; and promoting more accountable, participatory, and responsive government at all levels. The first elections under the new constitution were held in 2013 and led to the establishment of 47 new county governments. Each county government is made up of a county executive, headed by an elected governor, and an elected County Assembly that legislates and provides oversight. Making Devolution Work for Service Delivery in Kenya takes stock of how devolution has affected the delivery of basic services to Kenyan citizens nine years after the “devolution train” left the station. Whereas devolution was driven by political reform, the ensuing institutions and systems were expected to deliver greater socioeconomic equity through devolved service delivery. Jointly coordinated by the government of Kenya and the World Bank, the Making Devolution Work for Service Delivery (MDWSD) study is the first major assessment of Kenya’s devolution reform. The study provides key messages about what is working, what is not working, and what could work better to enhance service delivery based on currently available data. It provides an independent assessment of service delivery performance in five sectors: agriculture, education, health, urban services, and water services. This assessment includes an in-depth review of the main pillars of devolved service delivery: accountability, human resource management, intergovernmental finance, politics, and public financial management. In addition to its findings for the present, the MDWSD study provides recommendations on how Kenya can improve its performance in each of these pivotal areas in the future.Publication Ten Steps to a Results-Based Monitoring and Evaluation System : A Handbook for Development Practitioners(Washington, DC: World Bank, 2004)An effective state is essential to achieving socio-economic and sustainable development. With the advent of globalization, there are growing pressures on governments and organizations around the world to be more responsive to the demands of internal and external stakeholders for good governance, accountability and transparency, greater development effectiveness, and delivery of tangible results. Governments, parliaments, citizens, the private sector, Non-governmental Organizations (NGOs), civil society, international organizations, and donors are among the stakeholders interested in better performance. As demands for greater accountability and real results have increased, there is an attendant need for enhanced results-based monitoring and evaluation of policies, programs, and projects. This handbook provides a comprehensive ten-step model that will help guide development practitioners through the process of designing and building a results-based monitoring and evaluation system. These steps begin with a 'readiness assessment' and take the practitioner through the design, management, and importantly, the sustainability of such systems. The handbook describes each step in detail, the tasks needed to complete each one, and the tools available to help along the way.Publication Managing County Assets and Liabilities in Kenya(Washington, DC : World Bank, 2022)Public entities around the world possess an enormous volume of assets and wealth, which includes land, buildings, historic sites, parks, and infrastructure networks, among many others. Good management of such assets is a catalyst for accelerating development and expanding services; poor asset management generates enormous losses, including lost opportunities to build wealth. Private enterprises increasingly use computerized systems to manage assets such as fleets and buildings. Many city leaders in developing countries, however, are unaware of asset management or feel they lack the time or money to undertake it. Managing County Assets and Liabilities in Kenya: Postdevolution Challenges and Responses can help them begin or maintain their efforts to manage assets sustainably. This book helps readers understand the basic concept of asset management; explains systems, tools, and procedures; and provides models and guidance. Kenya has achieved much since its 2013 devolution of governance and management to new counties. However, counties, which are the local governments in Kenya, are still working toward establishing systems and procedures, creating asset and liability registers, verifying and valuing assets, using assets strategically, and resolving disputes surrounding inherited assets and liabilities. This book provides glimpses into the Kenyan devolution process and asset transfer challenges, draws lessons, and explores options relevant to both Kenya and other nations. Ample studies discuss various aspects of municipal asset management, such as managing infrastructure, fixed assets, water services, building properties, roads, or fleets. This book is unique among asset management studies in three ways: it discusses all sorts of assets and liabilities and their interlinkages, exemplifies the close connection between financial results and asset management of municipalities, and reveals the political economy challenges in transferring assets and liabilities across public entities.Publication Nigeria Development Update, June 2021(World Bank, Washington, DC, 2021-06)In 2020, Nigeria experienced its deepest recession in four decades, but growth resumed in the fourth quarter as pandemic restrictions were eased, oil prices recovered, and the authorities implemented policies to counter the economic shock. As a result, in 2020 the Nigerian economy experienced a smaller contraction (-1.8 percent) than had been projected when the pandemic began (-3.2 percent). As part of its response, the government carried out several long-delayed policy reforms, often against vocal opposition. Notably, the government (1) began to harmonize exchange rates; (2) began to eliminate gasoline subsidies; (3) started adjusting electricity tariffs to more cost-reflective levels; (4) cut nonessential spending and redirected resources to COVID-19 (coronavirus) responses at both the federal and the state levels; and (5) enhanced debt management and increased public-sector transparency, especially for oil and gas operations. By creating additional fiscal space and maximizing the impact of the government’s limited resources, these measures were critical in protecting the economy against a much deeper recession and in laying the foundation for earlier recovery. However, several critical reforms are as yet incomplete, which threatens Nigeria’s nascent recovery. In the baseline scenario, Nigeria’s economy is expected to grow by 1.8 percent in 2021. Despite the current favorable external environment, with oil prices recovering and growth in advanced economies, reform slippages would hinder the renewed economic expansion and undermine progress toward Nigeria’s development goals. In a risk scenario, in which the government fails to sustain recent macroeconomic and structural reforms, the pace of economic recovery would slow, and GDP growth couldbe just 1.1 percent in 2021.