Publication: Vulnerability to Poverty Following Extreme Weather Events in Malawi
Loading...
Date
2020-10
ISSN
Published
2020-10
Author(s)
Editor(s)
Abstract
Severe weather shocks recurrently hit Malawi, and they adversely affect the incomes of many farm households as well as small businesses. With climate change, the frequency of extreme weather events is expected to increase further. A clear understanding of households’ vulnerability to shock-induced poverty is critical for disaster risk management and the design of scalable social safety net programs. Standard poverty measures rely on static snapshots that are suitable for quantifying structural poverty but not for assessing the vulnerability of non-poor households to fall below the poverty line when they experience shocks. This study uses a nationally representative household survey and exogenously measured weather shocks to assess households' vulnerability to poverty in Malawi. To accurately estimate the impacts of shocks on consumption and vulnerability, the study excludes any kind of assistance (aid and food or cash transfers) that households might have received after major disasters. The key findings of the study are as follows: (1) drought during the growing season decreases non-assistance consumption per capita by 5–12 percent, depending on its intensity; (2) excess rainfall at the onset of the growing season reduces food consumption by 1.8 percent, while excess rainfall later in the growing season appears to increase consumption; (3) vulnerability to poverty is generally higher than static poverty, especially compared to static poverty measured during a good weather year; and (4) in years of extreme droughts, such as 2016, recorded poverty rates are higher than vulnerability, which indicates that the magnitude of drought in 2016 was so large that the chance of falling below the poverty line as a result of an even higher magnitude shock was low. These results suggest that identifying vulnerable households is key in designing adaptive social safety net programs that can be scaled up to cover those who become eligible for such programs after experiencing shocks.
Link to Data Set
Citation
“Baquie, Sandra; Fuje, Habtamu. 2020. Vulnerability to Poverty Following Extreme Weather Events in Malawi. Policy Research Working Paper;No. 9435. © World Bank. http://hdl.handle.net/10986/34630 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Publication The Future of Poverty(Washington, DC: World Bank, 2025-07-15)Climate change is increasingly acknowledged as a critical issue with far-reaching socioeconomic implications that extend well beyond environmental concerns. Among the most pressing challenges is its impact on global poverty. This paper projects the potential impacts of unmitigated climate change on global poverty rates between 2023 and 2050. Building on a study that provided a detailed analysis of how temperature changes affect economic productivity, this paper integrates those findings with binned data from 217 countries, sourced from the World Bank’s Poverty and Inequality Platform. By simulating poverty rates and the number of poor under two climate change scenarios, the paper uncovers some alarming trends. One of the primary findings is that the number of people living in extreme poverty worldwide could be nearly doubled due to climate change. In all scenarios, Sub-Saharan Africa is projected to bear the brunt, contributing the largest number of poor people, with estimates ranging between 40.5 million and 73.5 million by 2050. Another significant finding is the disproportionate impact of inequality on poverty. Even small increases in inequality can lead to substantial rises in poverty levels. For instance, if every country’s Gini coefficient increases by just 1 percent between 2022 and 2050, an additional 8.8 million people could be pushed below the international poverty line by 2050. In a more extreme scenario, where every country’s Gini coefficient increases by 10 percent between 2022 and 2050, the number of people falling into poverty could rise by an additional 148.8 million relative to the baseline scenario. These findings underscore the urgent need for comprehensive climate policies that not only mitigate environmental impacts but also address socioeconomic vulnerabilities.Publication Central Bank Independence and Sovereign Borrowing(Washington, DC: World Bank, 2025-07-25)This paper studies the impact of central bank independence on sovereign borrowing, using an index that captures institutional constraints on central bank lending to the government across 155 countries from 1972 to 2023. The findings show that tighter lending to the executive significantly reduces sovereign interest rates and raises the debt-to-gross domestic product ratio in developing countries. These effects reflect the executive’s improved ability to borrow at lower costs under greater central bank independence. The results are robust to multiple tests, but there are no significant effects in advanced economies. From a policy perspective, the results highlight the key role of independent central banks as catalysts for reducing governments’ borrowing costs and enhancing the government’s borrowing capacity.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.Publication Crowding Out and Banking Crises(Washington, DC: World Bank, 2025-07-22)This paper studies the effect of government issuance on firm issuance during banking crises using transaction-level bond and loan data from 66 countries between 1991 and 2017. Governments rarely issue loans, preferring to issue in bond markets. In contrast, firms receive most of their financing from banks. During banking crises, as the supply of domestic loans decreases, firms switch to issuing bonds in domestic markets. The paper uses a novel instrument based on maturing debt to overcome the potential endogeneity of government issuance. The findings show that firms must compete with the government for funds in the domestic bond market and are crowded out from this market as a result. This happens not only in developing countries, but in advanced countries as well. The paper also shows that firms with the ability to tap international debt markets switch to these markets when crowding out occurs in domestic bond markets. Lastly, the paper shows that more developed domestic bond markets mitigate, but do not eliminate, the degree to which crowding out occurs.Publication Designing and Analyzing Powerful Experiments(Washington, DC: World Bank, 2025-07-22)This paper offers practical advice on how to improve statistical power in randomized experiments through choices and actions researchers can take at the design, implementation, and analysis stages. At the design stage, the choice of estimand, choice of treatment, and decisions that affect the residual variance and intra-cluster correlation can all affect power for a given sample size. At the implementation stage, researchers can boost power through increasing compliance with treatment, reducing attrition, and improving outcome measurement. At the analysis stage, power can be increased through using different test statistics or estimands, through the choice of control variables, and through incorporating informative priors in a Bayesian analysis. A key message is that it does not make sense to talk of “the” power of an experiment. A study can be well-powered for one outcome or estimand, but not others, and a fixed sample size can yield very different levels of power depending on researcher decisions.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication The Health Impact of Extreme Weather Events in Sub-Saharan Africa(2009-06-01)Extreme weather events are known to have serious consequences for human health and are predicted to increase in frequency as a result of climate change. Africa is one of the regions that risks being most seriously affected. This paper quantifies the impact of extreme rainfall and temperature events on the incidence of diarrhea, malnutrition and mortality in young children in Sub-Saharan Africa. The panel data set is constructed from Demographic and Health Surveys for 108 regions from 19 Sub-Saharan African countries between 1992 and 2001 and climate data from the Africa Rainfall and Temperature Evaluation System from 1980 to 2001. The results show that both excess rainfall and extreme temperatures significantly raise the incidence of diarrhea and weight-for-height malnutrition among children under the age of three, but have little impact on the long-term health indicators, including height-for-age malnutrition and the under-five mortality rate. The authors use the results to simulate the additional health cost as a proportion of gross domestic product caused by increased climate variability. The projected health cost of increased diarrhea attributable to climate change in 2020 is in the range of 0.2 to 0.5 percent of gross domestic product in Africa.Publication The Welfare Effects of Extreme Weather Events : Insights from Three APEC Case Studies(Washington, DC, 2012-01)This report uses new measures of extreme weather and methodologies to gauge their welfare effects. A myriad of methodological issues and data constraints plague empirical work on the effects of extreme weather events on human welfare. The shocks themselves are often poorly measured and the lack of sufficiently long panel data or historical data on past events often forces a focus on effects in the short run. Economy wide effects of local shocks are typically only explored within the context of computable general equilibrium models which are very structural in nature. Proper evaluation of public interventions requires correction for the unobserved characteristics of the areas which receive the programs. The overall study was organized in four pillars: 1) fiscal options to address climate change; 2) technological options and role of trade and investment policies in fostering them; 3) capacity needs assessments; and 4) the human welfare effects of extreme weather events. To enable more in depth understanding of the methodologies used and the country specific insights emerging, the background papers underpinning each of the four pillars have been compiled in separate reports. This report provides an in-depth review of the empirical findings emanating from three country case studies examining the welfare effects of extreme weather. It concerns the occurrence of droughts in Indonesia, rainfall and temperature volatility in Mexico and droughts, floods and hurricanes in Vietnam.Publication The Cost of Adapting to Extreme Weather Events in a Changing Climate(World Bank, Dhaka, 2011-12)Bangladesh is one of the most climate vulnerable countries in the world. Situated in the delta of the Ganges, Brahmaputra, and Meghna (GBM) rivers, the country is exposed to a range of river and rainwater flood hazards due to climate variability, the timing, location, and extent of which depend on precipitation in the entire GBM basin. The Government of Bangladesh is fully committed to global climate-change advocacy and action, having already invested heavily in adaptation measures and policies. In recent decades, the government has invested more than US$10 billion to protect its population and assets in the floodplains. Given the uncertain magnitude and timing of the added risks from climate change, it is essential to identify the costs of climate proofing Bangladesh's critical infrastructure from intensified monsoon floods and cyclonic storm surges. Previously, few if any detailed studies have been developed on the costs of climate-proofing the country's infrastructure assets from inland monsoon floods and cyclones. Most analytical work to date has been confined to case studies, with relatively limited sets of locations, impacts, and adaptation measures. This study aims to fill that knowledge gap by providing detailed vulnerable population estimates and estimates of the incremental costs of asset adaptation out to the year 2050. It is part of a larger World Bank-supported study, entitled Economics of Adaptation to Climate Change (EACC), funded by the governments of the United Kingdom, the Netherlands, and Switzerland.Publication Municipal Vulnerability to Climate Change and Climate-Related Events in Mexico(World Bank, Washington, DC, 2013-04)A climate change vulnerability index in agriculture is presented at the municipal level in Mexico. Because the index is built with a multidimensional approach to vulnerability (exposure, sensitivity and adaptive capacity), it represents a tool for policy makers, academics and government alike to inform decisions about climate change resilience and regional variations within the country. The index entails baseline (2005) and prediction (2045) levels based on historic climate data and future-climate modeling. The results of the analysis suggest a wide variation in municipal vulnerability across the country at baseline and prediction points. The vulnerability index shows that highly vulnerable municipalities demonstrate higher climate extremes, which increases uncertainty for harvest periods, and for agricultural yields and outputs. The index shows at baseline that coastal areas host some of the most vulnerable municipalities to climate change in Mexico. However, it also shows that the Northwest and Central regions will likely experience the largest shifts in vulnerability between 2005 and 2045. Finally, vulnerability is found to vary according to specific variables: municipalities with higher vulnerability have more adverse socio-demographic conditions. With the vast municipal data available in Mexico, further sub-index estimations can lead to answers for specific policy and research questions.Publication Disquiet on the Weather Front : The Welfare Impacts of Climatic Variability in the Rural Philippines(World Bank, Washington, DC, 2013-08)Three recent rounds (2003, 2006, and 2009) of the Family Income and Expenditure Survey are matched to rainfall data from 43 rainfall stations in the Philippines to quantify the extent to which unusual weather has any negative effects on the consumption of Filipino households. It is found that negative rainfall shocks decrease consumption, in particular food consumption. Rainfall below one standard deviation of its long-run average causes food consumption to decrease by about 4 percent, when compared with rainfall within one standard deviation. Positive deviations above one standard deviation have a limited impact. Moreover, for households close to a highway or to a fixed-line phone, consumption appears to be fully protected from the impact of negative rainfall shocks.
Users also downloaded
Showing related downloaded files
Publication Classroom Assessment to Support Foundational Literacy(Washington, DC: World Bank, 2025-03-21)This document focuses primarily on how classroom assessment activities can measure students’ literacy skills as they progress along a learning trajectory towards reading fluently and with comprehension by the end of primary school grades. The document addresses considerations regarding the design and implementation of early grade reading classroom assessment, provides examples of assessment activities from a variety of countries and contexts, and discusses the importance of incorporating classroom assessment practices into teacher training and professional development opportunities for teachers. The structure of the document is as follows. The first section presents definitions and addresses basic questions on classroom assessment. Section 2 covers the intersection between assessment and early grade reading by discussing how learning assessment can measure early grade reading skills following the reading learning trajectory. Section 3 compares some of the most common early grade literacy assessment tools with respect to the early grade reading skills and developmental phases. Section 4 of the document addresses teacher training considerations in developing, scoring, and using early grade reading assessment. Additional issues in assessing reading skills in the classroom and using assessment results to improve teaching and learning are reviewed in section 5. Throughout the document, country cases are presented to demonstrate how assessment activities can be implemented in the classroom in different contexts.Publication Remarks to the Annual Meetings 2020 Development Committee(World Bank, Washington, DC, 2020-10-16)David Malpass, President of the World Bank Group, announced that the Board approved a fast track approach to emergency health support programs that now covers 111 countries. Most projects are well advanced, with average disbursement upward of 40 percent. The goal is to take broad, fast action early. The operational framework presented back in June has positioned the Bank to help countries address immediate health threats and social and economic impacts and maintain our focus on long-term development. The Bank is making good progress toward the 15-month target of 160 billion dollars in surge financing. Much of it is for the poorest countries and will take the form of grants or low-rate, long-maturity loans. IFC, through the Global Health Platform, will be providing financing to vaccine manufacturers to foster expanded production of COVID-19 vaccines in both part 1 and 2 countries, providing production is reserved for emerging markets. The Development Committee holds a unique place in the international architecture. It is the only global forum in which the Governments of developed countries and the Governments of developing countries, creditor countries and borrower countries, come together to discuss development and the ‘net transfer of resources to developing countries.’ The current International Financial Architecture system is skewed in favor of the rich and creditor countries. It is important that all voices are heard, so Malpass urged the Ministers of developing countries to use their voice and speak their minds today. Malpass urged consideration of how we can build a new approach to debt restructuring that allows for a fair relationship and balance between creditors and debtors. This will be critical in restoring growth in developing countries; and helping reverse the inequality.Publication Business Ready 2024(Washington, DC: World Bank, 2024-10-03)Business Ready (B-READY) is a new World Bank Group corporate flagship report that evaluates the business and investment climate worldwide. It replaces and improves upon the Doing Business project. B-READY provides a comprehensive data set and description of the factors that strengthen the private sector, not only by advancing the interests of individual firms but also by elevating the interests of workers, consumers, potential new enterprises, and the natural environment. This 2024 report introduces a new analytical framework that benchmarks economies based on three pillars: Regulatory Framework, Public Services, and Operational Efficiency. The analysis centers on 10 topics essential for private sector development that correspond to various stages of the life cycle of a firm. The report also offers insights into three cross-cutting themes that are relevant for modern economies: digital adoption, environmental sustainability, and gender. B-READY draws on a robust data collection process that includes specially tailored expert questionnaires and firm-level surveys. The 2024 report, which covers 50 economies, serves as the first in a series that will expand in geographical coverage and refine its methodology over time, supporting reform advocacy, policy guidance, and further analysis and research.Publication Implementation Know-how Briefs to Support Countries to Prioritize, Connect and Scale for a Digital-in-Health Future(Washington, DC: World Bank, 2023-08-18)Technology and data are integral to daily life. As health systems face increasing demands to deliver new, more, better, and seamless services affordable to all people, data and technology are essential. With the potential and perils of innovations like artificial intelligence the future of health care is expected to be technology-embedded and data-linked. This shift involves expanding the focus from digitization of health data to integrating digital and health as one: Digital-in-Health. The World Bank’s report, Digital-in-Health: Unlocking the Value for Everyone, calls for a new digital-in-health approach where digital technology and data are infused into every aspect of health systems management and health service delivery for better health outcomes. The report proposes ten recommendations across three priority areas for governments to invest in: prioritize, connect and scale. The Implementation Know-How Briefs serve as practical guides for countries as they implement the ten recommendations. Every Implementation Know-How Brief provides practical information to start planning and implementing how to implement the recommendations. It also contains key terminologies for those not familiar with a particular topic, provides key questions to ask, and a general orientation as to typical issues in these sectors. Topics covered are: 1.) Digital health assessments; 2.) Telemedicine and virtual health care; 3.) Private sector involvement in digital health; 4.) Interoperability in health sector; 5.) Data governance for health data; 6.) Cybersecurity for health sector; 7.) Digital health records; 8.) Determining value of digital technology in health; 9.) Certification and regulatory sandboxes for digital technologies in health; 10.) Workflow mapping for digital technology (re)design in health systems.Publication Improving the Performance of Higher Education in Vietnam(World Bank, Washington, DC, 2020-04-28)The progress of East Asian economies in recent years illustrates a strong symbiotic relationship among higher education, innovation, and growth through the production of research and skills. In the case of Vietnam, higher education has a significant positive effect on household poverty and long-term earnings at the individual level, where annualized private returns to higher education are above fifteen percent, one of the highest levels in the world. As Vietnam aspires to become an upper middle-income country by 2035, its productivity needs to increase continuously, which requires greater production and effective use of highskilled manpower and science, technology and innovation (STI). There is a disconnect between Vietnam’s remarkable achievement on equitable economic growth and human development, on the one hand, and the performance of the higher education system, on the other hand. Vietnam has experimented with a number of higher education reforms in the last two decades, with some success in expanding access but missing opportunities in achieving good results on quality and relevance, and in furthering equity. The main objective of this Bank’s report is to provide a diagnosis of the current performance of the Vietnamese universities and propose a range of options for transforming and developing the higher education system.