Christopher B. Barrett
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View article: The Probability of Food Security: A new longitudinal data set using the Panel Study of Income Dynamics
The Probability of Food Security: A new longitudinal data set using the Panel Study of Income Dynamics Open
The study of food security dynamics in the U.S. has long been impeded by the lack of extended longitudinal observations of the same households or individuals. This paper applies a newly-introduced household-level food security measure, the…
View article: Spatial Heterogeneity in Machine Learning-Based Poverty Mapping: Where Do Models Underperform?
Spatial Heterogeneity in Machine Learning-Based Poverty Mapping: Where Do Models Underperform? Open
This paper examines where poverty mapping based on machine learning underperforms due to variations across areas. It highlights the need for nuanced analysis and improved training data and remote sensing proxies to ensure poverty maps bett…
View article: How Removing Overgrown Water Plants Can Help Kids Stay Healthy and Improve The Planet
How Removing Overgrown Water Plants Can Help Kids Stay Healthy and Improve The Planet Open
In Africa, many kids get sick from tiny worms called Schistosoma. These worms can slow children’s growth and development; damage the liver, intestines, and bladder; and sometimes lead to cancer or even death. Schistosoma can keep communiti…
View article: High-frequency monitoring enables machine learning–based forecasting of acute child malnutrition for early warning
High-frequency monitoring enables machine learning–based forecasting of acute child malnutrition for early warning Open
The number of acutely food insecure people worldwide has doubled since 2017, increasing demand for early warning systems (EWS) that can predict food emergencies. Advances in computational methods, and the growing availability of near-real …
View article: Fostering Healthy, Equitable, Resilient, and Sustainable Agri‐Food Value Chains
Fostering Healthy, Equitable, Resilient, and Sustainable Agri‐Food Value Chains Open
The need for agrifood systems transformation to improve economic, environmental, equity, and health outcomes is widely recognized. Attention typically focuses on changing farming practices, consumers’ dietary choices, or both. Midstream ag…
View article: Microlevel structural poverty estimates for southern and eastern Africa
Microlevel structural poverty estimates for southern and eastern Africa Open
For many countries in the Global South traditional poverty estimates are available only infrequently and at coarse spatial resolutions, if at all. This limits decision-makers’ and analysts’ ability to target humanitarian and development in…
View article: Modeling how and why aquatic vegetation removal can free rural households from poverty-disease traps
Modeling how and why aquatic vegetation removal can free rural households from poverty-disease traps Open
Infectious disease can reduce labor productivity and incomes, trapping subpopulations in a vicious cycle of ill health and poverty. Efforts to boost African farmers’ agricultural production through fertilizer use can inadvertently promote …
View article: Mapping rangeland health indicators in eastern Africa from 2000 to 2022
Mapping rangeland health indicators in eastern Africa from 2000 to 2022 Open
Tracking environmental change is important to ensure efficient and sustainable natural resources management. Eastern Africa is dominated by arid and semi-arid rangeland systems, where extensive grazing of livestock represents the primary l…
View article: Pantograph: A Machine-to-Machine Interaction Interface for Advanced Theorem Proving, High Level Reasoning, and Data Extraction in Lean 4
Pantograph: A Machine-to-Machine Interaction Interface for Advanced Theorem Proving, High Level Reasoning, and Data Extraction in Lean 4 Open
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View article: Innovation portfolio management for the public non-profit research and development sector: What can we learn from the private sector?
Innovation portfolio management for the public non-profit research and development sector: What can we learn from the private sector? Open
Innovation Portfolio Management refers to the systems, processes and mechanisms to intentionally manage innovation investments and decisions within an organization against its mission or strategy. This approach to managing and optimizing i…
View article: Climate change exacerbates the environmental impacts of agriculture
Climate change exacerbates the environmental impacts of agriculture Open
Agriculture’s global environmental impacts are widely expected to continue expanding, driven by population and economic growth and dietary changes. This Review highlights climate change as an additional amplifier of agriculture’s environme…
View article: Efficiently Computing Compact Formal Explanations
Efficiently Computing Compact Formal Explanations Open
Building on VeriX (Verified eXplainability, arXiv:2212.01051), a system for producing optimal verified explanations for machine learning models, we present VeriX+, which significantly improves both the size and the generation time of forma…
View article: Ventricular stimulation in patients with myotonic dystrophy type 1 may not predict future ventricular arrhythmias
Ventricular stimulation in patients with myotonic dystrophy type 1 may not predict future ventricular arrhythmias Open
In this single center, v-stim in DM1 patients did not predict clinical VAs, as a vast majority of DM1 patients who developed VAs had negative v-stims.
View article: Escaping Poverty Traps and Unlocking Prosperity in the Face of Climate Risk
Escaping Poverty Traps and Unlocking Prosperity in the Face of Climate Risk Open
This Element outlines the origins and evolution of an international award-winning development intervention, index-based livestock insurance (IBLI), which scaled from a small pilot project in Kenya to a design that underpins drought risk ma…
View article: Comment on essd-2023-217
Comment on essd-2023-217 Open
Abstract. Tracking environmental change is important to ensure efficient and sustainable natural resources management. East Africa is dominated by arid and semi-arid rangeland systems, where extensive grazing of livestock represents the pr…
View article: Integrating Socio-Economic and Environmental Interventions to Improve Well-Being in Vulnerable Communities
Integrating Socio-Economic and Environmental Interventions to Improve Well-Being in Vulnerable Communities Open
Problem statement 2Poor rural communities often lack sufficient food and clean water to maintain human health and productivity, and face a high burden of infectious diseases, generating reinforcing feedback that causes poverty-disease trap…
View article: Comment on essd-2023-217
Comment on essd-2023-217 Open
Abstract. Tracking environmental change is important to ensure efficient and sustainable natural resources management. East Africa is dominated by arid and semi-arid rangeland systems, where extensive grazing of livestock represents the pr…
View article: Comment on essd-2023-217
Comment on essd-2023-217 Open
Abstract. Tracking environmental change is important to ensure efficient and sustainable natural resources management. East Africa is dominated by arid and semi-arid rangeland systems, where extensive grazing of livestock represents the pr…
View article: A scalable crop yield estimation framework based on remote sensing of solar-induced chlorophyll fluorescence (SIF)
A scalable crop yield estimation framework based on remote sensing of solar-induced chlorophyll fluorescence (SIF) Open
Projected increases in food demand driven by population growth coupled with heightened agricultural vulnerability to climate change jointly pose severe threats to global food security in the coming decades, especially for developing nation…
View article: Modeling how and why aquatic vegetation removal can free rural households from poverty-disease traps
Modeling how and why aquatic vegetation removal can free rural households from poverty-disease traps Open
Infectious disease can reduce labor productivity and incomes, trapping subpopulations in a vicious cycle of ill health and poverty. Efforts to boost African farmers' agricultural production through fertilizer use can inadvertently promote …