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David Tschirley

Michigan State University, Department of Agricultural, Food, and Resource Economics

David Tschirley is fixed-term professor of International Development in the Department of Food, Agricultural, and Resource Economics at Michigan State University, and Co-Director of the department’s Food Security Group. He is also a member of the Core Technical Team of MSU’s Global Center for Food Systems Innovation. His work emphasizes three main areas: 1) agrifood system transformation in Africa focusing on diet change and its implications over a range of policy and programmatic issues, including employment; 2) the intersection of food aid, staple food markets, and emergency response, including extensive work on monetization, local and regional food aid procurement, and the role of food trade and government policy in emergency response, and 3) institutional approaches to linking smallholder farmers to cash crop markets such as cotton and fresh produce.
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publication
Rural Youth Welfare along the Rural-urban Gradient: An Empirical Analysis across the Developing World

We use survey data on 170,000 households from Asia, Latin America and Africa, global geo-spatial data, and an economic geography framework to highlight five findings about rural youth in developing countries. First, the youth share in population is falling rapidly, and youth numbers are stable or falling slowly everywhere, except in Africa. In Africa, youth share is rising very slowly, but numbers are set to double in 40 years. Second, large majorities of rural youth live in spaces that are not inherently limiting: two-thirds live in zones with highest agricultural potential, and one-quarter combine this with highest commercialisation potential. The 4% that do live in inherently challenging spaces are concentrated in pockets of persistent poverty in middle-income countries. Third, rural spaces’ commercial potential has large impacts on welfare outcomes, but their agricultural potential has no detectable impact. Fourth, households with young members face income- and poverty ‘penalties’ in all regions and spaces within them, compared to households without young members. The poverty penalty declines sharply over space as commercial potential rises, but the income penalty shows ambiguous patterns. Fifth, households with young members earn lower relative returns to education, with varying patterns over space.

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publication
Pesticides: What You Don’t Know Can Hurt You

Agricultural intensification can negatively affect farmer and social welfare through health and environmental externalities if producers have imperfect knowledge of the risks posed by agricultural inputs. This paper explores the effects of health-risk information on the demand for substitutes in the pesticides market and farmer preferences for risk-mitigating technologies using a choice experiment integrated with a randomized controlled trial in Zambia. Environmental health-risk information provided through a farmer training program had an insignificant effect on demand for risk-mitigating personal protective equipment but a significant effect on demand for substitutes, lower toxicity pesticides. The treatment group was twice as likely to substitute a highly toxic pesticide with a low toxicity pesticide after receiving training. What farmers do not know can hurt them and the environment through lower demand for less risky and less damaging substitutes.

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publication
Rapid transformation of food systems in developing regions: Highlighting the role of agricultural research & innovations

Developing regions' food system has transformed rapidly in the past several decades. The food system is the dendritic cluster of R&D value chains, and the value chains linking input suppliers to farmers, and farmers upstream to wholesalers and processors midstream, to retailers then consumers downstream. We analyze the transformation in terms of these value chains' structure and conduct, and the effects of changes in those on its performance in terms of impacts on consumers and farmers, as well as the efficiency of and waste in the overall chain. We highlight the role of, and implications for agricultural research, viewed broadly as farm technology as well as research pertaining to all aspects of input and output value chains.

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