1,721,192 research outputs found
Stata v17 replication file for "Food inflation and child undernutrition in low and middle income countries" by Derek Headey and Marie Ruel
No full textThis replication folder describes the Stata v17 “do file” (code file) for statistical analysis for "Food inflation and child undernutrition in low and middle income countries " by Derek Headey & Marie Ruel. This do file can be used to replicate the analysis in the study mentioned above, published in Nature Communications. The study uses a combination of Demographic Health Survey (DHS) data for child, maternal, household level variables and national level indicators on real food price changes drawn from FAOSTAT, as well as conflict and climate variables. In summary, this is a large multi-country DHS dataset merged with FAO food and total consumer price indices (CPIs) and various other national level control variables. These are DHS surveys from 2000 onwards only.
The authors cannot publicly share the DHS data but can share it upon request, provided we can obtain approval from the DHS implementers. To make a request to access the data for this paper, please email Derek Headey at [email protected]. Alternatively researchers can access the raw DHS data from: https://dhsprogram.com/data/available-datasets.cfm and the country level indicators from the Food and Agriculture Organisation Consumer Prices data portal (https://www.fao.org/faostat/en/#data/CP) as well as The World Bank World Development Indicators (https://databank.worldbank.org/source/world-development-indicators) for obtaining data on various control variables
Adaptation to Land Constraints by Derek Headey
No full textPolicy Seminar “Boserup and Beyond Mounting Land Pressures & Development Strategies in Africa” at IFPRI on 4 September 2014. Presentation by Derek Headey, Senior Research Fellow in the Poverty, Health and Nutrition Division, IFPRI
Simulating the impact of climate change and adaptation strategies on farm productivity and income: A bioeconomic analysis
Get PDFThis study applied at the farm level in Tunisia aims at understanding the effects of climate change on agricultural productivity and income in Africa. Possible future climates are presented through different climate scenarios. The latter combines three levels of increasing temperature (1�centigrade (C), 2�C, and 3�C) with two levels of decreasing precipitation (10 and 20 percent) and a doubling of carbon dioxide concentration in the atmosphere (350 to 700 parts per million). The farming system of production is replicated through a bioeconomic model; that is, one that couples a cropping system model and an economic model run sequentially. The study reveals that land productivity and farm income decline under climate change. Depending on the changes in precipitation, farm productivity falls by 15 to 20 percent and farm income 5 to 20 percent when the temperature increases moderately (1�C). As the climate warms up (2�C and 3�C), farm productivity and income are severely affected, by 35 to 55 percent and 45 to 70 percent, respectively. When simple adaptation strategies based on new management techniques for hard wheat are tested - more irrigation and fertilization - compensations for the negative effects of climate change are found to be worthwhile only for a 1�C increase in temperature. However, the success of adaptation strategies highly depends on the availability of more water and lower additional cost to mobilize them at the farm level.adaptation strategies, Bioeconomic modeling, Agriculture, Climate change, farm income, productivity,
The price and trade effects of strict information requirements for genetically modified commodities: Under the Cartagena Protocol on Biosafety
Get PDFThis paper assesses the global economic implications of the proposed strict documentation requirements on traded shipments of potentially genetically modified (GM) commodities under the Cartagena Protocol on Biosafety. More specifically, we evaluate the trade diversion, price, and welfare effects of requiring all shipments to bear a list of specific GM events (the does contain rule) in the maize and soybean sectors. Using a spatial equilibrium model with 80 maize- and 53 soybean-trading countries, we show that information requirements would have a significant effect on the world market for maize and soybeans. But they would have even greater effects on trade, creating significant trade distortion that diverts exports from their original destination. The measure would also lead to significant negative welfare effects for all members of the Protocol and nonmembers that produce GM maize, soybeans, or both. While non-GM producers in Protocol member countries would benefit from this regulation, consumers and producers in many developing countries would have to pay a proportionally much heftier price for such a measure.Cartagena protocol on biosafety, Genetically modified food, International trade,
Potential collusion and trust: Evidence from a field experiment in Vietnam
Get PDFWe conduct framed trust games using contract dairy farmers in Vietnam as first movers to assess the impact of potential collusion on trust. Disaggregated analysis suggests that female farmers are more likely to trust overall, but are also more responsive to the addition of a third party and potential collusion. A third party induces them to trust at higher levels, but potential collusion between the trustee and the third party also induces them to trust at lower levels. Our findings corroborate well with existing studies on gender differences in decision making, which suggest that women's social preferences are more context-specific than men's.collusion, field experiment, Gender, trust game,
COVID-19 and its Impact on Childhood Malnutrition and Nutrition-related Mortality
No full textDerek Headey WEBINAR COVID-19 and its Impact on Childhood Malnutrition and Nutrition-related Mortality SEP 23, 2020 - 11:30 AM TO 12:30 PM EA
Seven key initiatives for preventing a recurring food crisis
No full textTaken from IFPRI Policy Brief 16 "Urgent Action Needed to Prevent Recurring Food Crises" by Shenggen Fan, Maximo Torero, and Derek Headey (March 2011
Assessments of the Impacts of COVID-19 on Myanmar's food security and welfare
No full textIsabel Lambrecht, Derek Headey POLICY SEMINAR COVID-19 Impact Assessments for Myanmar NOV 11, 2020 - 02:00 PM TO 03:30 PM MM
COVID-19 Impacts on Nutrition
No full textDerek Headey POLICY SEMINAR Virtual Event - COVID-19: Emerging problems and potential country-level responses APR 30, 2020 - 09:00 AM TO 10:15 AM ED
Promising indicators for the effectively targeting the poor in Myanmar
No full textPresentation prepared for MAPSA Learning Series session held on 10 February, 2023. Salauddin Tauseef and Derek Headey (both IFPRI) presented, and Ian Masias (IFPRI) moderated
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