Derek D Headey
Dados Biográficos
| ID | 255253 |
|---|---|
| NOME | Derek D Headey |
| PRENOMES | Derek D |
| SOBRENOME | Headey |
| ASSINATURA | HEADEY D D |
| AFILIAÇÕES | International Food Policy Research Institute |
| ORCID | 0000-0003-2476-5131 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 48 |
| TOTAL DE CITAÇÕES | 330 |
| TOTAL COMO AUTOR | 48 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2003 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 11 |
The state of global food insecurity measurement
Robust food insecurity indicators are needed for monitoring development targets, emergency responses, and rationally allocating foreign aid. For decades, global food security monitoring relied on the FAO’s prevalence of undernourishment, but this indicator’s fundamental limitations led the FAO to develop the Food Insecurity Experience Scale (FIES) and adopt the unaffordability of the healthy diet. In parallel, The World Bank monitors monetary pov…
Women's Dietary Diversity and Child Feeding Practices Amidst Covid19 in India
The COVID-19 pandemic caused a crisis that jeopardized food consumption and dietary diversity. This study aimed to: (1) investigate relationship between COVID-19 and women's and children's diets in India; (2) examine how this varies by socioeconomic status and mothers' vegetarianism; and (3) assess whether mobility restrictions during India's national lockdown influenced these dietary changes. The analysis drew on data from India's National Famil…
Affordability and nutritional challenges for the future of EAT diets
Is Subjective Wellbeing Too Subjective? The (large) Impact of Randomized Placement of Happiness and Worry Questions in a National Survey of Crisis-Affected Myanmar
From promises to action
The glass of milk half-empty? Dairy development and nutrition in low and middle income countries
Dairy products have an exceptionally rich nutrient profile and have long been promoted in high income countries to redress child malnutrition. But given all this potential, and the high burden of undernutrition in low- and middle-income countries (LMICs), why isn't dairy consumption more actively promoted in the developing world? In this review we focus on a broadly defined concept of "dairy development" to include production, trade, marketing, r…
Estimating the cost and affordability of healthy diets
Recently developed cost and affordability of healthy diet (CoAHD) metrics have quickly become mainstream food security indicators. However, published research on the sensitivity of estimation methods is limited. This paper focuses on two important innovations in CoAHD measurement at the global level. First, we develop a demographic scaling factor to adjust healthy diet costs for cross-country differences in age structures, since younger populatio…
Food prices and the wages of the poor
The affordability of nutritious food for "all people, at all times" is a critically important dimension of food security. Yet surprisingly, timely high-frequency indicators of food affordability are rarely collected in any systematic fashion despite price volatility emerging as major source of food insecurity in the 21st Century. The 2008 global food crisis prompted international agencies to invest heavily in monitoring domestic food prices in lo…
Effects of an integrated poultry value chain, nutrition, gender and Wash intervention (Selever) on hygiene and child morbidity and anthropometry in Burkina Faso
Nutrition-sensitive agriculture programmes have the potential to improve child nutrition outcomes, but livestock intensification may pose risks related to water, sanitation and hygiene (WASH) conditions. We assessed the impact of SELEVER, a nutrition- and gender-sensitive poultry intervention, with and without added WASH focus, on hygiene practices, morbidity and anthropometric indices of nutrition in children aged 2-4 years in Burkina Faso. A 3-…
Growth in milk consumption and reductions in child stunting
Agricultural and food policies are increasingly being tasked with doing more to improve the nutritional status of low-income populations, especially reductions in child stunting. Which specific food sectors warrant additional policy attention is less clear, although a growing body of research argues that increased animal-sourced food consumption in general, and increased dairy consumption specifically, can significantly reduce the risks of stunti…
An optimal diet for planet and people
Affordability of the EAT–Lancet reference diet
BACKGROUND: The EAT-Lancet Commission drew on all available nutritional and environmental evidence to construct the first global benchmark diet capable of sustaining health and protecting the planet, but it did not assess dietary affordability. We used food price and household income data to estimate affordability of EAT-Lancet benchmark diets, as a first step to guiding interventions to improve diets around the world. METHODS: We obtained retail…
Impacts of Covid-19 on childhood malnutrition and nutrition-related mortality
Affordability of nutritious diets in rural India
In 2015-16 some 38% of preschool children in India were stunted, 21% wasted, and more than half of Indian mothers and young children were anemic. Though widely studied, surprisingly little research on malnutrition in India explores the role of diets, particularly the affordability of nutritious diets given low wages and the significant structural problems facing India's agricultural sector. To explore this we used nationally representative rural …
Cost and affordability of nutritious diets at retail prices
Many policies and programs aim to bring nutritious diets within reach of the poor. This paper uses retail prices and nutrient composition for 671 foods and beverages to compute the daily cost of essential nutrients required for an active and healthy life in 177 countries around the world. We compare this minimum cost of nutrient adequacy with the subsistence cost of dietary energy and per-capita spending on all goods and services, to identify sty…
The Relative Caloric Prices of Healthy and Unhealthy Foods Differ Systematically across Income Levels and Continents
BACKGROUND: Relative prices of healthy/unhealthy foods have been implicated in the obesity epidemic, but never extensively quantified across countries or empirically linked to undernutrition. OBJECTIVES: This study compared relative caloric prices (RCPs) for different food categories across 176 countries and ascertained their associations with dietary indicators and nutrition outcomes. METHODS: We converted prices for 657 standardized food produc…
Poultry husbandry, water, sanitation, and hygiene practices, and child anthropometry in rural Burkina Faso
Poultry production in low income countries provides households with nutrient-rich meat and egg products, as well as cash income. However, traditional production systems present potential health and nutrition risks because poultry scavenging around household compounds may increase children's exposure to livestock-related pathogens. Data from a cross-sectional survey were analysed to examine associations between poultry, water, sanitation, and hygi…
First foods
Diet quality is closely linked to child growth and development, especially among infants aged 6-23 months who need to complement breastmilk with the gradual introduction of nutrient-rich solid foods. This paper links Demographic and Health Survey data on infant feeding to household and environmental factors for 76,641 children in 42 low- and middle-income countries surveyed in 2006-2013, providing novel stylized facts about diets in early childho…
Water, Sanitation, and Child Health
Water, sanitation, and hygiene (WASH) investments are widely seen as essential for improving health in early childhood. However, the experimental literature on WASH interventions identifies inconsistent impacts on child health outcomes, with relatively robust impacts on diarrhea and other symptoms of infection but weak and varying impacts on child nutrition. In contrast, observational research exploiting cross-sectional variation in water and san…
Misreporting Month of Birth
A large literature has used children’s birthdays to identify exposure to shocks and estimate their impacts on later outcomes. Using height-for-age z scores (HAZ) for more than 990,000 children in 62 countries from 163 Demographic and Health Surveys (DHS), we show how random errors in birth dates create artifacts in HAZ that can be used to diagnose the extent of age misreporting. The most important artifact is an upward gradient in HAZ by recorded…
Animal Sourced Foods and Child Stunting
Stunting affects 160 million pre‐school children globally with adverse life‐long consequences. While work within nutritional science suggests that stunting in early childhood is associated with low intakes of animal‐sourced foods (ASFs), this topic has received little attention from economists. We attempt to redress this omission through an analysis of 130,432 children aged 6–23 months from 49 countries. We document distinctive patterns of ASF co…
Understanding the geographical burden of stunting in India
India accounts for approximately one third of the world's total population of stunted preschoolers. Addressing global undernutrition, therefore, requires an understanding of the determinants of stunting across India's diverse states and districts. We created a district-level aggregate data set from the recently released 2015-2016 National and Family Health Survey, which covered 601,509 households in 640 districts. We used mapping and descriptive …
An egg for everyone
Eggs are a highly nutritious food but have been shown to be infrequently consumed in many low-income countries, especially by women and children. We collate country-level data on egg production, availability, consumption, prices, industry structure, and contextual trends and use these to estimate current patterns and likely future outcomes under four alternative scenarios. These scenarios are as follows: incremental change based on expected econo…
Progress and inequalities in infant and young child feeding practices in India between 2006 and 2016
Limited evidence exists on socio-economic status (SES) inequalities in infant and young child feeding (IYCF) in India. We examine trends and changes in inequalities for IYCF practices over 2006-2016 and identify factors that may explain differences in IYCF across SES groups. We use data from the 2015-2016 and 2005-2006 National Family Health Surveys (n = 112,133 children < 24 months). We constructed SES quintiles (Q) and assessed inequalities usi…
Household dairy production and child growth
Research from richer countries finds that dairy consumption has strong positive associations with linear growth in children, but surprisingly little evidence exists for developing countries where diets are far less diversified. One exception is a recent economics literature using the notion of incomplete markets to estimate the impacts of cattle ownership on children’s milk consumption and growth outcomes in Eastern Africa. In addition to externa…
Land pressures, the evolution of farming systems, and development strategies in Africa
Evidence assembled in this special issue of Food Policy shows that rising rural population densities in parts of Africa are profoundly affecting farming systems and the region’s economies in ways that are underappreciated in current discourse on African development issues. This study synthesizes how people, markets and governments are responding to rising land pressures in Africa, drawing on key findings from the various contributions in this spe…
The Other Asian Enigma
Although South Asia has long been synonymous with persistent and unusually high rates of child undernutrition – the so called Asian Enigma – Bangladesh has managed to sustain a surprisingly rapid reduction in the rate of child undernutrition for at least two decades. We investigate this unheralded success through a regression and decomposition analysis of changes in child growth outcomes across five rounds of DHS surveys from 1997 to 2011. We fin…
Rethinking the global food crisis
Developmental Drivers of Nutritional Change
Agriculture, Development, and Urban Bias
Adaptation to land constraints
Since the seminal works of Malthus and Boserup, scientists have long debated the impact of population growth and land constraints on the wellbeing of rural people. Today these concerns are particularly relevant to Africa, with its rapid population growth, very small farms, and chronic food insecurity. In this paper we examine adaptation to falling land-labor ratios using a comprehensive theoretical framework in which households faced with binding…
Scarcity amidst abundance? Reassessing the potential for cropland expansion in Africa
Sub-Saharan Africa is typically regarded as land abundant, and previous efforts to estimate the true extent of potentially available cropland (PAC) have largely affirmed this perception. Such efforts, however, have largely focused on production potential and have underemphasized economic profitability and other constraints to expansion. This paper re-estimates PAC for Africa in a more explicit economic framework that emphasizes the returns to agr…
Misreporting Month of Birth
A large literature has used children’s birthdays to identify exposure to shocks and estimate their impacts on later outcomes. Using height-for-age z scores (HAZ) for more than 990,000 children in 62 countries from 163 Demographic and Health Surveys (DHS), we show how random errors in birth dates create artifacts in HAZ that can be used to diagnose the extent of age misreporting. The most important artifact is an upward gradient in HAZ by recorded…
How Important is Parental Education for Child Nutrition
Existing evidence on the impacts of parental education on child nutrition is plagued by both internal and external validity concerns. In this paper we try to address these concerns through a novel econometric analysis of 376,992 preschool children from 56 developing countries. We compare a naïve least square model to specifications that include cluster fixed effects and cohort-based educational rankings to reduce biases from omitted variables bef…
Cost and affordability of nutritious diets at retail prices
Many policies and programs aim to bring nutritious diets within reach of the poor. This paper uses retail prices and nutrient composition for 671 foods and beverages to compute the daily cost of essential nutrients required for an active and healthy life in 177 countries around the world. We compare this minimum cost of nutrient adequacy with the subsistence cost of dietary energy and per-capita spending on all goods and services, to identify sty…
The Effect of Population Growth on Economic Growth
Many studies have sought to gauge the impact of population growth on economic growth. A well-known stylized fact of this literature is that the estimated effects of population growth measures on economic growth are not robust, varying between being positive, negative, and insignificantly different from zero. The present study analyzes 471 statistical regressions from 29 prominent economic growth studies using meta-regression analysis to identify …
Introduction – Understanding Structural Transformation in Africa
Diversification and Development in Pastoralist Ethiopia
Affordability of nutritious diets in rural India
In 2015-16 some 38% of preschool children in India were stunted, 21% wasted, and more than half of Indian mothers and young children were anemic. Though widely studied, surprisingly little research on malnutrition in India explores the role of diets, particularly the affordability of nutritious diets given low wages and the significant structural problems facing India's agricultural sector. To explore this we used nationally representative rural …
Land constraints and agricultural intensification in Ethiopia
Highland Ethiopia is one of the most densely populated regions of Africa and has long been associated with both Malthusian disasters and Boserupian agricultural intensification. This paper explores the race between these two countervailing forces, with the goal of inform two important policy questions. First, how do rural Ethiopians adapt to land constraints? And second, do land constraints significantly influence welfare outcomes in rural Ethiop…
The Burkinabè Cotton Story 1992–2007
First foods
Diet quality is closely linked to child growth and development, especially among infants aged 6-23 months who need to complement breastmilk with the gradual introduction of nutrient-rich solid foods. This paper links Demographic and Health Survey data on infant feeding to household and environmental factors for 76,641 children in 42 low- and middle-income countries surveyed in 2006-2013, providing novel stylized facts about diets in early childho…
Water, Sanitation, and Child Health
Water, sanitation, and hygiene (WASH) investments are widely seen as essential for improving health in early childhood. However, the experimental literature on WASH interventions identifies inconsistent impacts on child health outcomes, with relatively robust impacts on diarrhea and other symptoms of infection but weak and varying impacts on child nutrition. In contrast, observational research exploiting cross-sectional variation in water and san…
Estimating the cost and affordability of healthy diets
Recently developed cost and affordability of healthy diet (CoAHD) metrics have quickly become mainstream food security indicators. However, published research on the sensitivity of estimation methods is limited. This paper focuses on two important innovations in CoAHD measurement at the global level. First, we develop a demographic scaling factor to adjust healthy diet costs for cross-country differences in age structures, since younger populatio…
Food prices and the wages of the poor
The affordability of nutritious food for "all people, at all times" is a critically important dimension of food security. Yet surprisingly, timely high-frequency indicators of food affordability are rarely collected in any systematic fashion despite price volatility emerging as major source of food insecurity in the 21st Century. The 2008 global food crisis prompted international agencies to invest heavily in monitoring domestic food prices in lo…
German Reunification
Appraising a post-Washington paradigm
This essay critically reviews an important new school of thought in the ‘post-Washington’ era, that of Professor Dani Rodrik and his collaborators. The review first provides some background on the substantive differences between the Washington Consensus and more heterodox development paradigms, such as Robert Wade's East Asian revisionism. The paper then outlines Rodrik's own developmental vision, which could be termed a third way inasmuch as it …
German Reunification
Anatomy of a crisis
Although the potential causes and consequences of recent rising international food prices have attracted widespread attention, many existing appraisals are superficial and/or piecemeal. This article attempts to provide a more comprehensive review of these issues based on the best and most recent research, as well as on fresh theoretical and empirical analysis. We first analyze the causes of the current crisis by considering how well standard expl…
Agriculture, Development, and Urban Bias
Appraising a post-Washington paradigm
This essay critically reviews an important new school of thought in the ‘post-Washington’ era, that of Professor Dani Rodrik and his collaborators. The review first provides some background on the substantive differences between the Washington Consensus and more heterodox development paradigms, such as Robert Wade's East Asian revisionism. The paper then outlines Rodrik's own developmental vision, which could be termed a third way inasmuch as it …
The Effect of Population Growth on Economic Growth
Many studies have sought to gauge the impact of population growth on economic growth. A well-known stylized fact of this literature is that the estimated effects of population growth measures on economic growth are not robust, varying between being positive, negative, and insignificantly different from zero. The present study analyzes 471 statistical regressions from 29 prominent economic growth studies using meta-regression analysis to identify …
The Short-Run Macroeconomic Impact of Foreign Aid to Small States
This paper investigates the short-run macroeconomic impact of aid in small developing countries (SDCs) by using a vector auto regression (VAR) model to study the impact of aid on net import (absorption) and domestic demand (spending). We focus on average country effects within two country sub-groups, and find substantial differences between ‘aid-dependent’ SDCs and other SDCs that are more dependent on natural resources, tourism or financial serv…
Rethinking the global food crisis
The Burkinabè Cotton Story 1992–2007
Developmental Drivers of Nutritional Change
Rethinking the measurement of food security
Diversification and Development in Pastoralist Ethiopia
Agriculture and nutrition in India
In India, progress against undernutrition has been slow. Given its importance for income generation, improving diets, care practices, and maternal health, the agriculture sector is widely regarded as playing an important role in accelerating the reduction in undernutrition. This paper comprehensively maps existing evidence along agriculture–nutrition pathways in India and assesses both the quality and coverage of the existing literature. We prese…
Scarcity amidst abundance? Reassessing the potential for cropland expansion in Africa
Sub-Saharan Africa is typically regarded as land abundant, and previous efforts to estimate the true extent of potentially available cropland (PAC) have largely affirmed this perception. Such efforts, however, have largely focused on production potential and have underemphasized economic profitability and other constraints to expansion. This paper re-estimates PAC for Africa in a more explicit economic framework that emphasizes the returns to agr…
Land pressures, the evolution of farming systems, and development strategies in Africa
Evidence assembled in this special issue of Food Policy shows that rising rural population densities in parts of Africa are profoundly affecting farming systems and the region’s economies in ways that are underappreciated in current discourse on African development issues. This study synthesizes how people, markets and governments are responding to rising land pressures in Africa, drawing on key findings from the various contributions in this spe…
Land constraints and agricultural intensification in Ethiopia
Highland Ethiopia is one of the most densely populated regions of Africa and has long been associated with both Malthusian disasters and Boserupian agricultural intensification. This paper explores the race between these two countervailing forces, with the goal of inform two important policy questions. First, how do rural Ethiopians adapt to land constraints? And second, do land constraints significantly influence welfare outcomes in rural Ethiop…
Adaptation to land constraints
Since the seminal works of Malthus and Boserup, scientists have long debated the impact of population growth and land constraints on the wellbeing of rural people. Today these concerns are particularly relevant to Africa, with its rapid population growth, very small farms, and chronic food insecurity. In this paper we examine adaptation to falling land-labor ratios using a comprehensive theoretical framework in which households faced with binding…
The Other Asian Enigma
Although South Asia has long been synonymous with persistent and unusually high rates of child undernutrition – the so called Asian Enigma – Bangladesh has managed to sustain a surprisingly rapid reduction in the rate of child undernutrition for at least two decades. We investigate this unheralded success through a regression and decomposition analysis of changes in child growth outcomes across five rounds of DHS surveys from 1997 to 2011. We fin…
Introduction – Understanding Structural Transformation in Africa
Cows, Missing Milk Markets, and Nutrition in Rural Ethiopia
In rural economies encumbered by significant market imperfections, farming decisions may partly be motivated by nutritional considerations, in addition to income and risk factors. These imperfections create the potential for farm assets to have direct dietary impacts on nutrition in addition to any indirect effects via income. We test this hypothesis for the dairy sector in rural Ethiopia, finding that cow ownership raises children’s milk consump…
Is resilience a useful concept in the context of food security and nutrition programmes? Some conceptual and practical considerations
Drivers of nutritional change in four South Asian countries
This paper quantifies the factors explaining long-term improvements in child height for age z-scores in Bangladesh (1996/1997-2011), India (1992/1993-2005/2006), Nepal (1997-2011) and Pakistan (1991-2013). We apply the same statistical techniques to data from a common data source from which we have extracted a set of common explanatory variables that capture 'nutrition-sensitive' factors. Three are particularly important in explaining height for …
Urban Wage Behaviour and Food Price Inflation in Ethiopia
Theoretically, increases in food prices could benefit the poor by increasing the demand for unskilled labour, and hence their wages. This paper tests this hypothesis in urban Ethiopia. We exploit a unique panel of monthly price and wage data from 111 urban markets to first construct welfare-relevant measures of real wages, before employing various panel estimators to formally test wage-food price integration. We find moderate rates of long-run ad…
How Important is Parental Education for Child Nutrition
Existing evidence on the impacts of parental education on child nutrition is plagued by both internal and external validity concerns. In this paper we try to address these concerns through a novel econometric analysis of 376,992 preschool children from 56 developing countries. We compare a naïve least square model to specifications that include cluster fixed effects and cohort-based educational rankings to reduce biases from omitted variables bef…
Animal Sourced Foods and Child Stunting
Stunting affects 160 million pre‐school children globally with adverse life‐long consequences. While work within nutritional science suggests that stunting in early childhood is associated with low intakes of animal‐sourced foods (ASFs), this topic has received little attention from economists. We attempt to redress this omission through an analysis of 130,432 children aged 6–23 months from 49 countries. We document distinctive patterns of ASF co…
Understanding the geographical burden of stunting in India
India accounts for approximately one third of the world's total population of stunted preschoolers. Addressing global undernutrition, therefore, requires an understanding of the determinants of stunting across India's diverse states and districts. We created a district-level aggregate data set from the recently released 2015-2016 National and Family Health Survey, which covered 601,509 households in 640 districts. We used mapping and descriptive …
Economics (34 obras) · Geography (25 obras) · Child Nutrition and Water Access (23 obras) · Agriculture (22 obras) · Medicine (21 obras) · Business (17 obras) · Economic growth (17 obras) · Environmental health (15 obras) · Poverty, Education, and Child Welfare (15 obras) · Food Security and Health in Diverse Populations (13 obras)