Publication: Crops, Conflict and Climate Change
Loading...
Published
2025-01-08
ISSN
Date
2025-01-08
Author(s)
Editor(s)
Abstract
This paper studies the welfare impacts of agricultural shocks on households with detailed heterogeneity, by taking consumption, land, and labor allocation choices into account. The underlying model is quantified with household survey data from 51 developing countries, then used to analyze the welfare consequences of the food price hikes induced by the Russian Federation's invasion of Ukraine and future climate change. Both repress income and exacerbate inequality. War-induced food inflation reduced real household incomes across developing countries by 2.90 percent on average, while changes in yields due to climate change will reduce real incomes by 11.99 percent. The welfare impacts of both shocks vary enormously across the income distribution, with already vulnerable households bearing the brunt of their costs. Poor households suffer losses that are considerably larger and much more dispersed than those predicted by models that do not feature household heterogeneity and rely exclusively on aggregate data.
Link to Data Set
Citation
“Artuc, Erhan; Porto, Guido; Rijkers, Bob. 2025. Crops, Conflict and Climate Change. Policy Research Working Paper; 11018. © World Bank. http://hdl.handle.net/10986/42639 License: CC BY 3.0 IGO.”
Associated URLs
Associated content
Other publications in this report series
Publication Gender Gaps in the Performance of Small Firms: Evidence from Urban Peru(Washington, DC: World Bank, 2025-09-23)This paper estimates the gender gap in the performance of firms in Peru using representative data on both formal and informal firms. On average, informal female-led firms have lower sales, labor productivity, and profits compared to their male-led counterparts, with differences more pronounced when controlling for observable determinants of firm performance. However, gender gaps are only significant at the bottom of the performance distribution of informal firms, and these gaps disappear at the top of the distribution of informal firms and for formal firms. Possible explanations for the performance gaps at the bottom of the distribution include the higher likelihood of small, female-led firms being home-based, which is linked to lower profits, and their concentration in less profitable sectors. The paper provides suggestive evidence that household responsibilities play a key role in explaining the gender gap in firm performance among informal firms. Therefore, policies that promote access to care services or foster a more equal distribution of household activities may reduce gender productivity gaps and allow for a more efficient allocation of resources.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 Intergenerational Income Mobility around the World(Washington, DC: World Bank, 2025-07-09)This paper introduces a new global database with estimates of intergenerational income mobility for 87 countries, covering 84 percent of the world’s population. This marks a notable expansion of the cross-country evidence base on income mobility, particularly among low- and middle-income countries. The estimates indicate that the negative association between income mobility and inequality (known as the Great Gatsby Curve) continues to hold across this wider range of countries. The database also reveals a positive association between income mobility and national income per capita, suggesting that countries achieve higher levels of intergenerational mobility as they grow richer.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 The Impact of Atlantic Hurricanes on Business Activity(Washington, DC: World Bank, 2025-09-22)This paper quantifies the short-run economic impact of 21 Atlantic hurricanes on U.S. local business activity from 2017 to 2024 using anonymized Mastercard transaction data aggregated by ZIP code. On average, hurricanes reduce merchant sales by 12.4 percent during the preparation, impact, and recovery phases—an estimated US$1.38 billion in lost revenue per storm. Substitution in spending across nearby areas or large online platforms is limited, indicating widespread local consumption declines. Economic disruption varies more by industry than storm intensity, with independent stores hit harder than chains. Local businesses with larger online presence face smaller, shorter sales declines, showing greater resilience.
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication Trading Off the Income Gains and the Inequality Costs of Trade Policy(World Bank, Washington, DC, 2019-04)This paper characterizes the trade-off between the income gains and the inequality costs of trade using survey data for 54 developing countries. Tariff data on agricultural and manufacturing goods are combined with household survey data on detailed income and expenditure patterns to estimate the first-order effects of the elimination of import tariffs on household welfare. The paper assesses how these welfare effects vary across the distribution by estimating impacts on the consumption of traded goods, wage income, farm and non-farm family enterprise income, and government transfers. For each country, the income gains and the inequality costs of trade liberalization are quantified and the trade-offs between them are assessed using an Atkinson social welfare index. The analysis finds average income gains from import tariff liberalization in 45 countries and average income losses in nine countries. Across countries in the sample, the gains from trade are 1.9 percent of real household expenditure on average. We find overwhelming evidence of a trade-off between the income gains (losses) and the inequality costs (gains), which arise because trade tends to exacerbate income inequality: 45 countries face a trade-off, while only nine do not. The income gains typically more than offset the increase in inequality. In the majority of developing countries, the prevailing tariff structure thus induces sizable welfare losses.Publication Protectionism and Gender Inequality in Developing Countries(World Bank, Washington, DC, 2021-08)How do tariffs impact gender inequality? Using harmonized household survey and tariff data from 54 low- and middle-income countries, this paper shows that protectionism has an anti-female bias. On average, tariffs repress the real incomes of female headed households by 0.6 percentage points relative to that of male headed ones. Female headed households bear the brunt of tariffs because they derive a smaller share of their income from and spend a larger share of their budget on agricultural products, which are usually subject to high tariffs in developing countries. Consistent with this explanation, the anti-female bias is stronger in countries where female-headed households are underrepresented in agricultural production, are more reliant on remittances, and spend a larger share of their budgets on food than male-headed ones.Publication Household Impacts of Tariffs(Published by Oxford University Press on behalf of the World Bank, 2020-03-19)How do trade reforms impact households in different parts of the income distribution? This paper presents a new database, the Household Impacts of Tariffs data set, which contains harmonized household survey and tariff data for 54 low- and middle-income countries. The data cover highly disaggregated information on household budget and income shares for 53 agricultural products, wage labor income, non-farm enterprise sales and transfers, as well as spending on manufacturing and services. Using a stylized model of the first-order impacts of import tariffs on household real income, this paper quantifies the welfare implications of agricultural trade protection. On average, unilateral elimination of agricultural tariffs would increase household incomes by 2.50 percentage points. Import tariffs have highly heterogeneous effects across countries and within countries across households, consumers, and income earners; the average standard deviation of the gains from trade within a country is 1.01 percentage points.Publication Household Impacts of Tariffs(World Bank, Washington, DC, 2019-12)How do trade reforms impact households in different parts of the income distribution? This paper presents a new database, the Household Impacts of Tariffs data set, which contains harmonized household survey and tariff data for 54 low- and lower-middle income countries. The data cover highly disaggregated information on household budget and income shares for 53 agricultural products, wage labor income, nonfarm enterprise sales and transfers, as well as spending on manufacturing and services. Using a stylized model of the first-order impacts of import tariffs on household real income, this paper quantifies the welfare implications of agricultural trade protection. On average, unilateral elimination of agricultural tariffs would increase household incomes by 2.50 percentage points. Import tariffs have highly heterogeneous effects across countries and within countries across households, consumers, and income earners; the average standard deviation of the gains from trade within a country is 1.01 percentage points.Publication A Mapping of Labor Mobility Costs in Developing Countries(World Bank, Washington, D.C., 2013-08)Estimates of labor mobility costs are needed to assess the responses of employment and wages to trade shocks when factor adjustment is costly. Available methods to estimate those costs rely on panel data, which are seldom available in developing countries. The authors propose a method to estimate mobility costs using readily obtainable data worldwide. The estimator matches the changes in observed sectoral employment allocations with the predicted allocations from a model of costly labor adjustment. This paper estimates a world map of labor mobility costs and uses those estimates to explore the response of labor markets to trade policy.
Users also downloaded
Showing related downloaded files
Publication World Development Report 2006(Washington, DC, 2005)This year’s Word Development Report (WDR), the twenty-eighth, looks at the role of equity in the development process. It defines equity in terms of two basic principles. The first is equal opportunities: that a person’s chances in life should be determined by his or her talents and efforts, rather than by pre-determined circumstances such as race, gender, social or family background. The second principle is the avoidance of extreme deprivation in outcomes, particularly in health, education and consumption levels. This principle thus includes the objective of poverty reduction. The report’s main message is that, in the long run, the pursuit of equity and the pursuit of economic prosperity are complementary. In addition to detailed chapters exploring these and related issues, the Report contains selected data from the World Development Indicators 2005‹an appendix of economic and social data for over 200 countries. This Report offers practical insights for policymakers, executives, scholars, and all those with an interest in economic development.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 Poverty, Prosperity, and Planet Report 2024(Washington, DC: World Bank, 2024-10-15)The Poverty, Prosperity, and Planet Report 2024 is the latest edition of the series formerly known as Poverty and Shared Prosperity. The report emphasizes that reducing poverty and increasing shared prosperity must be achieved in ways that do not come at unacceptably high costs to the environment. The current “polycrisis”—where the multiple crises of slow economic growth, increased fragility, climate risks, and heightened uncertainty have come together at the same time—makes national development strategies and international cooperation difficult. Offering the first post-Coronavirus (COVID)-19 pandemic assessment of global progress on this interlinked agenda, the report finds that global poverty reduction has resumed but at a pace slower than before the COVID-19 crisis. Nearly 700 million people worldwide live in extreme poverty with less than US$2.15 per person per day. Progress has essentially plateaued amid lower economic growth and the impacts of COVID-19 and other crises. Today, extreme poverty is concentrated mostly in Sub-Saharan Africa and fragile settings. At a higher standard more typical of upper-middle-income countries—US$6.85 per person per day—almost one-half of the world is living in poverty. The report also provides evidence that the number of countries that have high levels of income inequality has declined considerably during the past two decades, but the pace of improvements in shared prosperity has slowed, and that inequality remains high in Latin America and the Caribbean and Sub-Saharan Africa. Worldwide, people’s incomes today would need to increase fivefold on average to reach a minimum prosperity threshold of US$25 per person per day. Where there has been progress in poverty reduction and shared prosperity, there is evidence of an increasing ability of countries to manage natural hazards, but climate risks are significantly higher in the poorest settings. Nearly one in five people globally is at risk of experiencing welfare losses due to an extreme weather event from which they will struggle to recover. The interconnected issues of climate change and poverty call for a united and inclusive effort from the global community. Development cooperation stakeholders—from governments, nongovernmental organizations, and the private sector to communities and citizens acting locally in every corner of the globe—hold pivotal roles in promoting fair and sustainable transitions. By emphasizing strategies that yield multiple benefits and diligently monitoring and addressing trade-offs, we can strive toward a future that is prosperous, equitable, and resilient.Publication The State of Economic Inclusion Report 2021(Washington, DC: World Bank, 2021-01-19)The State of Economic Inclusion Report 2021 sheds light on one of the most intractable challenges faced by development policy makers and practitioners: transforming the economic lives of the world’s poorest and most vulnerable people. Economic inclusion programs are a bundle of coordinated, multidimensional interventions that support individuals, households, and communities so they can raise their incomes and build their assets. Programs targeting the extreme poor and vulnerable groups are now under way in 75 countries. This report presents data and evidence from 219 of these programs, which are reaching over 90 million beneficiaries. Governments now lead the scale-up of economic inclusion interventions, often building on pre-existing national programs such as safety nets, livelihoods and jobs, and financial inclusion, and 93 percent of the total beneficiaries are covered by government programs. The report offers four important contributions: • A detailed analysis of the nature of these programs, the people living in extreme poverty and vulnerability who they support, and the organizational challenges and opportunities inherent in designing and leading them. • An evidence review of 80 quantitative and qualitative evaluations of economic inclusion programs in 37 countries. • The first multicountry costing study including both government-led and other economic inclusion programs, indicating that programs show potential for cost efficiencies when integrated into national systems. • Four detailed case studies featuring programs underway in Bangladesh, India, Peru, and the Sahel, which highlight the programmatic and institutional adaptations required to scale in quite diverse contexts. Data from the report are available on the PEI Data Portal (http://www.peiglobal.org) where users can explore and submit data to build on this baseline.Publication Argentina Country Climate and Development Report(World Bank, Washington, DC, 2022-11)The Argentina Country Climate and Development Report (CCDR) explores opportunities and identifies trade-offs for aligning Argentina’s growth and poverty reduction policies with its commitments on, and its ability to withstand, climate change. It assesses how the country can: reduce its vulnerability to climate shocks through targeted public and private investments and adequation of social protection. The report also shows how Argentina can seize the benefits of a global decarbonization path to sustain a more robust economic growth through further development of Argentina’s potential for renewable energy, energy efficiency actions, the lithium value chain, as well as climate-smart agriculture (and land use) options. Given Argentina’s context, this CCDR focuses on win-win policies and investments, which have large co-benefits or can contribute to raising the country’s growth while helping to adapt the economy, also considering how human capital actions can accompany a just transition.