Person:
Larson, Donald F.
Author Name Variants
Fields of Specialization
Rural Development Policy; Natural Resource Policy; Agricultural Productivity and Growth; Climate Change Policy and Markets; Commodity Markets and Risk
Degrees
External Links
Departments
Development Research Group, World Bank
Externally Hosted Work
Contact Information
Last updated
January 31, 2023
Biography
Donald F. Larson is a Senior Economist with the World Bank’s Development Research Group. He holds a B.A in economics from the College of William and Mary, an M.A. in economics from Virginia Tech, and a Ph.D. in Agricultural and Resource Economics from the University of Maryland.
With colleagues, he has authored or edited five books, including An African Green Revolution: Finding Ways to Boost Productivity on Small Farms, a forthcoming volume from Springer, and The Clean Development Mechanism: An Early History of Unanticipated Outcomes, a forthcoming volume from World Scientific. He has published numerous book chapters and journal articles, with an emphasis on agricultural productivity and growth; food and rural development policies; natural resource policies; the institutions and markets related to climate change; and the performance of commodity futures and risk markets.
During his time with the World Bank, Don has participated in policy discussion in Africa, Eastern Europe, Central Asia, East Asia, Latin America, and the Caribbean. He was a member of the team that launched the World Bank’s Prototype Carbon Fund.
Publication Search Results
1 - 10 of 20
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Publication
A Conceptual Model of Incomplete Markets and the Consequences for Technology Adoption Policies in Ethiopia
(World Bank, Washington, DC, 2013-10)In Africa, farmers have been reluctant to take up new varieties of staple crops developed to boost smallholder yields and rural incomes. Low fertilizer use is often mentioned as a proximate cause, but some believe the problem originates with incomplete input markets. As a remedy, African governments have introduced technology adoption programs with fertilizer subsidies as a core component. Still, the links between market performance and choices about using fertilizer are poorly articulated in empirical studies and policy discussions, making it difficult to judge whether the programs are expected to generate lasting benefits or to simply offset high fertilizer prices. This paper develops a conceptual model to show how choices made by agents supplying input services combine with household livelihood settings to generate heterogeneous decisions about fertilizer use. An applied model is estimated with data from a panel survey in rural Ethiopia. The results suggest that adverse market conditions limit the adoption of fertilizer-based technologies, especially among resource-poor households. Farmers appear to respond to market signals in the aggregate and this provides a pathway for subsidies to stimulate demand. However, the research suggests that lowering transaction costs, through investments in infrastructure and market institutions, can generate deeper effects by expanding the technologies available to farmers across all pricing outcomes. -
Publication
Should African Rural Development Strategies Depend on Smallholder Farms? An Exploration of the Inverse Productivity Hypothesis
(World Bank, Washington, DC, 2012-09)In Africa, most development strategies include efforts to improve the productivity of staple crops grown on smallholder farms. An underlying premise is that small farms are productive in the African context and that smallholders do not forgo economies of scale -- a premise supported by the often observed phenomenon that staple cereal yields decline as the scale of production increases. This paper explores a research design conundrum that encourages researchers who study the relationship between productivity and scale to use surveys with a narrow geographic reach, when policy would be better served with studies based on wide and heterogeneous settings. Using a model of endogenous technology choice, the authors explore the relationship between maize yields and scale using alternative data. Since rich descriptions of the decision environments that farmers face are needed to identify the applied technologies that generate the data, improvements in the location specificity of the data should reduce the likelihood of identification errors and biased estimates. However, the analysis finds that the inverse productivity hypothesis holds up well across a broad platform of data, despite obvious shortcomings with some components. It also finds surprising consistency in the estimated scale elasticities. -
Publication
Aligning Climate Change Mitigation and Agricultural Policies in Eastern Europe and Central Asia
(World Bank, Washington, DC, 2012-06)Greenhouse gas emissions are largely determined by how energy is created and used, and policies designed to encourage mitigation efforts reflect this reality. However, an unintended consequence of an energy-focused strategy is that the set of policy instruments needed to tap mitigation opportunities in agriculture is incomplete. In particular, market-linked incentives to achieve mitigation targets are disconnected from efforts to better manage carbon sequestered in agricultural land. This is especially important for many countries in Eastern Europe and Central Asia where once-productive land has been degraded through poor agricultural practices. Often good agricultural policies and prudent natural resource management can compensate for missing links to mitigation incentives, but only partially. At the same time, two international project-based programs, Joint Implementation and the Clean Development Mechanism, have been used to finance other types of agricultural mitigation efforts worldwide. Even so, a review of projects suggests that few countries in Eastern Europe and Central Asia take full advantage of these financing paths. This paper discusses mitigation opportunities in the region, the reach of current mitigation incentives, and missed mitigation opportunities in agriculture. The paper concludes with a discussion of alternative policies designed to jointly promote mitigation and co-benefits for agriculture and the environment. -
Publication
The Grain Chain : Food Security and Managing Wheat Imports in Arab Countries
(World Bank, Washington, DC, 2011-12)Arab countries depend heavily on imported food, particularly wheat. Population growth, rising incomes, and climate change will only increase their dependency on wheat imports, thereby making Arab countries even more exposed to international market volatility. A recent World Bank study, 'the grain chain: food security and managing wheat imports in Arab countries,' identifies key bottlenecks in the wheat-import supply chain (WISC) and some possible remedies. Efficiency improvements to the supply chain can improve food security. This smart lesson provides a summary of the relevant issues. -
Publication
The Cost Structure of the Clean Development Mechanism
(World Bank, Washington, DC, 2012-11)This paper examines the cost of producing emission reduction credits under the Clean Development Mechanism. Using project-specific data, cost functions are estimated using alternative functional forms. The results show that, in general, the distribution of projects in the pipeline does not correspond exclusively to the cost of generating anticipated credits. Rather, investment choices appear to be influenced by location and project type considerations in a way that is consistent with variable transaction costs and investor preferences among hosts and classes of projects. This implies that comparative advantage based on the marginal cost of abatement is only one of several factors driving Clean Development Mechanism investments. This is significant since much of the conceptual and applied numerical literature concerning greenhouse gas mitigation policies relies on presumptions about relative abatement costs. The authors also find that Clean Development Mechanism projects generally exhibit constant or increasing returns to scale. In contrast, they find variations among classes of projects concerning economies of time. -
Publication
Agricultural Policies and Trade Paths in Turkey
(World Bank Group, Washington, DC, 2014-10)In 1959, shortly after the European Economic Community was founded under the 1957 Treaty of Rome, Turkey applied for Associate Membership in the then six-member common market. By 1963, a path for integrating the economies of Turkey and the eventual European Union had been mapped. As with many trade agreements, agriculture posed difficult political hurdles, which were never fully cleared, even as trade barriers to other sectors were eventually removed and a Customs Union formed. This essay traces the influences the Turkey-European Union economic institutions have had on agricultural policies and the agriculture sector. An applied general equilibrium framework is used to provide estimates of what including agriculture under the Customs Union would mean for the sector and the economy. The paper also discusses the implications of fully aligning Turkey's agricultural policies with the European Union's Common Agricultural Policy, as would be required under full membership. -
Publication
Should African Rural Development Strategies Depend on Smallholder Farms? An Exploration of the Inverse-Productivity Hypothesis
(Wiley, 2013-09-03)In Africa, most development strategies include efforts to improve the productivity of staple crops grown on smallholder farms. An underlying premise is that small farms are productive in the African context and that smallholders do not forgo economies of scale—a premise supported by the often observed phenomenon that staple cereal yields decline as the scale of production increases. This article explores a research design conundrum that encourages researchers who study the relationship between productivity and scale to use surveys with a narrow geographic reach in order to produce more reliable results, even though results are better suited for policy decisions when they are based on data that are broadly representative. Using a model of endogenous technology choice, we explore the relationship between maize yields and scale using alternative data. Since rich descriptions of the decision environments that farmers face are needed to identify the applied technologies that generate the data, improvements in the location specificity of the data should reduce the likelihood of identification errors and biased estimates. However, our analysis finds that the inverse-productivity hypothesis holds up well across a broad platform of data, despite obvious shortcomings with some components. It also finds surprising consistency in the estimated scale elasticities. -
Publication
Food Security and Storage in the Middle East and North Africa
(Oxford University Press on behalf of the World Bank, 2014-01-23)In times of highly volatile commodity markets, governments often try to protect their populations from rapidly rising food prices, which can be particularly harmful for the poor. A potential solution for food-deficit countries is to hold strategic reserves that can be called on when international prices spike. But how large should strategic stockpiles be, and what rules should govern their release? In this paper, we develop a dynamic competitive storage model for wheat in the Middle East and North Africa region, where imported wheat is the most significant component of the average diet. We analyze a strategy that sets aside wheat stockpiles, which can be used to keep domestic prices below a targeted price. Our analysis shows that if the target price is set high and reserves are adequate, the strategy can be effective and robust. Contrary to most interventions, strategic storage policies are counter-cyclical, and when the importing region is sufficiently large, a regional policy can smooth global prices. Simulations indicate that this is the case for the Middle East and North Africa region. Nevertheless, the policy is more costly than a procyclical policy similar to food stamps that uses targeted transfers to directly offset high prices with a subsidy. -
Publication
Are Women Less Productive Farmers?: How Markets and Risk Affect Fertilizer Use, Productivity, and Measured Gender Effects in Uganda
(World Bank, Washington, DC, 2015-04)African governments and international development groups see boosting productivity on smallholder farms as key to reducing rural poverty and safeguarding the food security of farming and non-farming households. Prompting smallholder farmers to use more fertilizer has been a key tactic. Closing the productivity gap between male and female farmers has been another avenue toward achieving the same goal. The results in this paper suggest the two are related. Fertilizer use and maize yields among smallholder farmers in Uganda are increased by improved access to markets and extension services, and reduced by ex ante risk-mitigating production decisions. Standard ordinary least squares regression results indicate that gender matters as well; however, the measured productivity gap between male and female farmers disappears when gender is included in a list of determinants meant to capture the indirect effects of market and extension access. -
Publication
Short Term Electric Production Technology Switching Under Carbon Cap and Trade
(MDPI, 2012-10-23)This study examines fuel switching in electricity production following the introduction of the European Union’s Emissions Trading System (EU ETS) for greenhouse gas emissions. A short-run restricted cost equation is estimated with carbon permits, high-carbon fuels, and low carbon fuels as variable inputs. Shadow values and substitution elasticities for carbon-free energy resources from nuclear, hydroelectric and renewable sources are imputed from the cost equation. The empirical analysis examines 12 European countries using monthly data on fuel use, prices, and electricity generation during the first phase of the European Emissions Trading System. Despite low emission permit prices, this study finds statistically significant substitution between fossil fuels and carbon free sources of energy for electric power production. Significant substitution between fossil fuels and nuclear energy also was found. Still, while 18 of the 20 substitution elasticities are statistically significant, they are all less than unity, consistent with limited substitution. Overall, these results suggest that prices for carbon emission permits relative to prices for carbon and carbon free sources of energy do matter but that electric power producers have limited operational flexibility in the short-run to satisfy greenhouse gas emission limits.