David J Spielman
Dados Biográficos
| ID | 1632209 |
|---|---|
| NOME | David J Spielman |
| PRENOMES | David J |
| SOBRENOME | Spielman |
| ASSINATURA | SPIELMAN D J |
| AFILIAÇÕES | International Food Policy Research Institute |
| ORCID | 0000-0002-6889-7358 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 31 |
| TOTAL DE CITAÇÕES | 253 |
| TOTAL COMO AUTOR | 31 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2006 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 9 |
Enhancing farmers’ access to neglected crop seeds for healthy diets in a changing climate
Food insecurity and poor diets undermine human health, livelihoods, and aspirations. Climate change further exacerbates the problem of achieving zero hunger. Promoting the production of a diverse portfolio of nutrient-dense, climate-resilient crops enables food supply for healthy diets in the coming years and decades. Many are underutilized even though they are considered opportunity crops, with an unrealized potential to improve food security an…
Cost and affordability of recommended diets in Rwanda using [near] real-time market data
Countries are increasingly benchmarking food assistance and labour laws on the cost of nationally recommended diets. Benchmarking is made against national annual estimates, which fail to account for sub-national and intra-annual variation in cost, blunting the impact of policies. Using monthly market price data collected by the Government of Rwanda (April 2019-March 2024), we estimate the cost of the country’s proposed food-based dietary guidelin…
Cooperation and the management of local common resources in remote rural communities
It is widely recognized that local management of common pool resources can be more efficient and more effective than private markets or top-down government management, especially in remote rural communities in which the institutions may be weak or prone to elite capture. In this paper, we explore the propensity for cooperation in the management of local common resources by introducing a variant of a public goods game among remote rural communitie…
Gendered networks and demand for an agricultural technology in India
Studies on social learning and technology adoption often only consider the networks of a single individual in a household as a source of information influencing agricultural production decisions. We test the validity of this assumption by examining the role of men's and women's social networks in the adoption of a novel water-saving technology, laser land leveling (LLL), in India. Using network data from men and women in the same household, we te…
Fertilizer policy reforms in the midst of crisis
Fertilizer, soil health, and economic shocks
Agricultural innovation frames, policies, and instruments
The role of genotyping in measuring improved variety adoption and impact
Miracle Seeds
To fully benefit from new agricultural technologies such as improved seed varieties, significant investment in complementary inputs such as fertilizers and pesticides and practices such as systematic planting, irrigation, and weeding are also required. Farmers may fail to recognize the importance of these complements, leading to disappointing crop yields and outputs and, eventually, dis-adoption of the improved variety. Using a field experiment, …
Policy and performance in Uganda's seed sector
Hiding or Pleasing
To gain a better understanding of intrahousehold bargaining processes, surveys increasingly collect data from co-heads individually, especially on decision-making, asset ownership and labour contributions. However, answers provided by co-heads to the same set of questions often differ substantially. Recent research suggests that while some of this disagreement is due to random measurement error and cognitive bias, part also reflects non-overlappi…
Digital tools and agricultural market transformation in Africa
Despite enthusiasm for the potential of digital innovations to transform agricultural markets in Africa, progress made thus far has been limited to small-scale experiments that often fail to scale up. Realizing the full potential of digital innovations – tools, technologies, applications, and services – in Africa requires not just further development of these solutions at meaningful scales, but also more nuanced evidence from both successful and …
Empowering women through targeting information or role models
Agricultural advisory services are generally biased towards men, with information targeted mainly to male members within the household, and in formats that often reinforce male dominance in agricultural decision-making. Such biases affect women’s ability to make informed decisions and limit their intra-household bargaining power. Because women’s empowerment in agriculture has many well-established benefits, designing inclusive agricultural extens…
Estimating seed demand in the presence of market frictions
This paper measures the effect of seed quality misperceptions on bidding behavior and demand for high-quality seed using an information-provision experiment within an incentive-compatible Vickery Second Price (SPA) auction mechanism that mimics seed purchasing decisions in the presence of seed market frictions. We find that most individuals are prone to quality misperception and revise their bids upwards (downwards) in response to positive (negat…
Accelerating technical change through ICT
Despite enthusiasm around applications of information and communications technologies (ICTs) to smallholder agriculture in many lower-income countries, there are still many questions on the effectiveness of ICT-based approaches. This study assesses the impacts of video-mediated agricultural extension service provision on farmers' adoption of improved agricultural technologies and practices in Ethiopia using data from a two-year randomized experim…
Changing patterns in genebank acquisitions of crop genetic materials
During the past two decades, a series of global policy changes affecting genetic resource conservation, use, and exchange have entered into force: the 2004 International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA), and more recently, the 2014 Nagoya Protocol on Access and Benefit Sharing (NP), a follow-on to the 1993 Convention on Biological Diversity (CBD). This paper characterizes the changing policy landscape governing…
Demand for Complementary Financial and Technological Tools for Managing Drought Risk
Innovations that mitigate weather-related production risks can potentially benefit farmers in risk-prone areas. We examine two distinct tools for managing drought risk: (1) weather index insurance and (2) a drought-tolerant (DT) rice variety. Although these tools can independently address drought risk, we demonstrate the additional benefits gained by bundling them into a complementary product. Results suggest that farmers are generally unwilling …
Ex ante and ex post effects of hybrid index insurance in Bangladesh
This study assesses both the demand for and effectiveness of an index insurance product designed to help smallholder farmers in Bangladesh manage crop production risk during the monsoon season. Villages were randomized into either an insurance treatment or a comparison group, and discounts and rebates were randomly allocated across treatment villages to encourage insurance take-up and to allow for the estimation of the price-elasticity of insuran…
Targeting Technology to Increase Smallholder Profits and Conserve Resources
With heterogeneous demand and consumption externalities, market segmentation and targeting can improve social welfare. We use a selective trial for laser land leveling (LLL) in India to understand such targeting strategies. We elicit farmer demand for and benefits from LLL services. LLL reduces groundwater extraction by 24%, with comparable fuel savings from reduced pumping. To leverage positive externalities, we combine farmer demand, LLL pumpin…
Trading off nutrition and education? A panel data analysis of the dissimilar welfare effects of Organic and Fairtrade standards
Millions of smallholder farmers in developing countries participate in different types of sustainability standards. A growing body of literature has analyzed the welfare effects, with mixed results. Yet, there are important knowledge gaps. First, most existing studies have looked at the effects of one standard in one country. When comparing between studies it is unclear whether dissimilar outcomes are the result of different standards or differen…
Private Sector Incentives and the Diffusion of Agricultural Technology
The role of intellectual property rights (IPRs) has been extensively debated in the literature on technology transfers and agricultural productivity growth in developing countries. However, few studies offer cross-country evidence on how IPRs affect yield growth by incentivising private sector investment in cultivar improvement. We address this knowledge gap by testing technology diffusion patterns for six major crops using a unique dataset for t…
Leveling with friends
The seed and agricultural biotechnology industries in India
Heterogeneous Demand for Drought-Tolerant Rice
Food Standards, Certification, and Poverty among Coffee Farmers in Uganda
Reaching the rural poor through rural producer organizations? A study of agricultural marketing cooperatives in Ethiopia
Food Standards, Certification, and Poverty among Coffee Farmers in Uganda
Leveling with friends
Rural innovation systems and networks
Policies to promote cereal intensification in Ethiopia
Ex ante and ex post effects of hybrid index insurance in Bangladesh
This study assesses both the demand for and effectiveness of an index insurance product designed to help smallholder farmers in Bangladesh manage crop production risk during the monsoon season. Villages were randomized into either an insurance treatment or a comparison group, and discounts and rebates were randomly allocated across treatment villages to encourage insurance take-up and to allow for the estimation of the price-elasticity of insuran…
Trading off nutrition and education? A panel data analysis of the dissimilar welfare effects of Organic and Fairtrade standards
Millions of smallholder farmers in developing countries participate in different types of sustainability standards. A growing body of literature has analyzed the welfare effects, with mixed results. Yet, there are important knowledge gaps. First, most existing studies have looked at the effects of one standard in one country. When comparing between studies it is unclear whether dissimilar outcomes are the result of different standards or differen…
The art and science of innovation systems inquiry
Heterogeneous Demand for Drought-Tolerant Rice
Pro-poor agricultural biotechnology
Empowering women through targeting information or role models
Agricultural advisory services are generally biased towards men, with information targeted mainly to male members within the household, and in formats that often reinforce male dominance in agricultural decision-making. Such biases affect women’s ability to make informed decisions and limit their intra-household bargaining power. Because women’s empowerment in agriculture has many well-established benefits, designing inclusive agricultural extens…
Digital tools and agricultural market transformation in Africa
Despite enthusiasm for the potential of digital innovations to transform agricultural markets in Africa, progress made thus far has been limited to small-scale experiments that often fail to scale up. Realizing the full potential of digital innovations – tools, technologies, applications, and services – in Africa requires not just further development of these solutions at meaningful scales, but also more nuanced evidence from both successful and …
Accelerating technical change through ICT
Despite enthusiasm around applications of information and communications technologies (ICTs) to smallholder agriculture in many lower-income countries, there are still many questions on the effectiveness of ICT-based approaches. This study assesses the impacts of video-mediated agricultural extension service provision on farmers' adoption of improved agricultural technologies and practices in Ethiopia using data from a two-year randomized experim…
Fertilizer policy reforms in the midst of crisis
The seed and agricultural biotechnology industries in India
Change and diversity in smallholder rice–fish systems
Fertilizer, soil health, and economic shocks
Agricultural innovation frames, policies, and instruments
The role of genotyping in measuring improved variety adoption and impact
Estimating seed demand in the presence of market frictions
This paper measures the effect of seed quality misperceptions on bidding behavior and demand for high-quality seed using an information-provision experiment within an incentive-compatible Vickery Second Price (SPA) auction mechanism that mimics seed purchasing decisions in the presence of seed market frictions. We find that most individuals are prone to quality misperception and revise their bids upwards (downwards) in response to positive (negat…
Demand for Complementary Financial and Technological Tools for Managing Drought Risk
Innovations that mitigate weather-related production risks can potentially benefit farmers in risk-prone areas. We examine two distinct tools for managing drought risk: (1) weather index insurance and (2) a drought-tolerant (DT) rice variety. Although these tools can independently address drought risk, we demonstrate the additional benefits gained by bundling them into a complementary product. Results suggest that farmers are generally unwilling …
Targeting Technology to Increase Smallholder Profits and Conserve Resources
With heterogeneous demand and consumption externalities, market segmentation and targeting can improve social welfare. We use a selective trial for laser land leveling (LLL) in India to understand such targeting strategies. We elicit farmer demand for and benefits from LLL services. LLL reduces groundwater extraction by 24%, with comparable fuel savings from reduced pumping. To leverage positive externalities, we combine farmer demand, LLL pumpin…
Pro-poor agricultural biotechnology
Reaching the rural poor through rural producer organizations? A study of agricultural marketing cooperatives in Ethiopia
The art and science of innovation systems inquiry
Rural innovation systems and networks
Policies to promote cereal intensification in Ethiopia
Change and diversity in smallholder rice–fish systems
The seed and agricultural biotechnology industries in India
Heterogeneous Demand for Drought-Tolerant Rice
Food Standards, Certification, and Poverty among Coffee Farmers in Uganda
Leveling with friends
Private Sector Incentives and the Diffusion of Agricultural Technology
The role of intellectual property rights (IPRs) has been extensively debated in the literature on technology transfers and agricultural productivity growth in developing countries. However, few studies offer cross-country evidence on how IPRs affect yield growth by incentivising private sector investment in cultivar improvement. We address this knowledge gap by testing technology diffusion patterns for six major crops using a unique dataset for t…
Trading off nutrition and education? A panel data analysis of the dissimilar welfare effects of Organic and Fairtrade standards
Millions of smallholder farmers in developing countries participate in different types of sustainability standards. A growing body of literature has analyzed the welfare effects, with mixed results. Yet, there are important knowledge gaps. First, most existing studies have looked at the effects of one standard in one country. When comparing between studies it is unclear whether dissimilar outcomes are the result of different standards or differen…
Ex ante and ex post effects of hybrid index insurance in Bangladesh
This study assesses both the demand for and effectiveness of an index insurance product designed to help smallholder farmers in Bangladesh manage crop production risk during the monsoon season. Villages were randomized into either an insurance treatment or a comparison group, and discounts and rebates were randomly allocated across treatment villages to encourage insurance take-up and to allow for the estimation of the price-elasticity of insuran…
Targeting Technology to Increase Smallholder Profits and Conserve Resources
With heterogeneous demand and consumption externalities, market segmentation and targeting can improve social welfare. We use a selective trial for laser land leveling (LLL) in India to understand such targeting strategies. We elicit farmer demand for and benefits from LLL services. LLL reduces groundwater extraction by 24%, with comparable fuel savings from reduced pumping. To leverage positive externalities, we combine farmer demand, LLL pumpin…
Demand for Complementary Financial and Technological Tools for Managing Drought Risk
Innovations that mitigate weather-related production risks can potentially benefit farmers in risk-prone areas. We examine two distinct tools for managing drought risk: (1) weather index insurance and (2) a drought-tolerant (DT) rice variety. Although these tools can independently address drought risk, we demonstrate the additional benefits gained by bundling them into a complementary product. Results suggest that farmers are generally unwilling …
Changing patterns in genebank acquisitions of crop genetic materials
During the past two decades, a series of global policy changes affecting genetic resource conservation, use, and exchange have entered into force: the 2004 International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA), and more recently, the 2014 Nagoya Protocol on Access and Benefit Sharing (NP), a follow-on to the 1993 Convention on Biological Diversity (CBD). This paper characterizes the changing policy landscape governing…
Accelerating technical change through ICT
Despite enthusiasm around applications of information and communications technologies (ICTs) to smallholder agriculture in many lower-income countries, there are still many questions on the effectiveness of ICT-based approaches. This study assesses the impacts of video-mediated agricultural extension service provision on farmers' adoption of improved agricultural technologies and practices in Ethiopia using data from a two-year randomized experim…
Policy and performance in Uganda's seed sector
Hiding or Pleasing
To gain a better understanding of intrahousehold bargaining processes, surveys increasingly collect data from co-heads individually, especially on decision-making, asset ownership and labour contributions. However, answers provided by co-heads to the same set of questions often differ substantially. Recent research suggests that while some of this disagreement is due to random measurement error and cognitive bias, part also reflects non-overlappi…
Digital tools and agricultural market transformation in Africa
Despite enthusiasm for the potential of digital innovations to transform agricultural markets in Africa, progress made thus far has been limited to small-scale experiments that often fail to scale up. Realizing the full potential of digital innovations – tools, technologies, applications, and services – in Africa requires not just further development of these solutions at meaningful scales, but also more nuanced evidence from both successful and …
Empowering women through targeting information or role models
Agricultural advisory services are generally biased towards men, with information targeted mainly to male members within the household, and in formats that often reinforce male dominance in agricultural decision-making. Such biases affect women’s ability to make informed decisions and limit their intra-household bargaining power. Because women’s empowerment in agriculture has many well-established benefits, designing inclusive agricultural extens…
Estimating seed demand in the presence of market frictions
This paper measures the effect of seed quality misperceptions on bidding behavior and demand for high-quality seed using an information-provision experiment within an incentive-compatible Vickery Second Price (SPA) auction mechanism that mimics seed purchasing decisions in the presence of seed market frictions. We find that most individuals are prone to quality misperception and revise their bids upwards (downwards) in response to positive (negat…
Cooperation and the management of local common resources in remote rural communities
It is widely recognized that local management of common pool resources can be more efficient and more effective than private markets or top-down government management, especially in remote rural communities in which the institutions may be weak or prone to elite capture. In this paper, we explore the propensity for cooperation in the management of local common resources by introducing a variant of a public goods game among remote rural communitie…
Gendered networks and demand for an agricultural technology in India
Studies on social learning and technology adoption often only consider the networks of a single individual in a household as a source of information influencing agricultural production decisions. We test the validity of this assumption by examining the role of men's and women's social networks in the adoption of a novel water-saving technology, laser land leveling (LLL), in India. Using network data from men and women in the same household, we te…
Fertilizer policy reforms in the midst of crisis
Economics (25 obras) · Business (19 obras) · Agriculture (18 obras) · Agricultural Innovations and Practices (14 obras) · Economic growth (12 obras) · Agricultural economics (10 obras) · Geography (9 obras) · Innovation and Socioeconomic Development (9 obras) · Microfinance and Financial Inclusion (8 obras) · Agricultural risk and resilience (7 obras)