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This article investigates the impact of rising wheat prices on household food security in Afghanistan. Exploiting a unique nationally-representative household survey, we find evidence of large declines in the real value of per capita food consumption. Smaller price elasticities with respect to calories than with respect to food consumption suggest that households trade off quality for quantity as they move away from nutrient-rich foods such as meat and vegetables toward staple foods. Our work improves upon country-level simulation studies by providing estimates of actual household food security during a price shock in one of the world's poorest, most food-insecure countries. 相似文献
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Charles DH Parry 《South African Journal of International Affairs》2013,20(1):38-70
The current policy arena with regard to drugs in South Africa is in a state of transition. Yet the burden of harm associated with drug use and the increased usage that has accompanied our changing situation necessitate, it is argued, a comprehensive drug control strategy. The paper provides an overview of previous attempts to address the problem in South Africa and presents the case for a ‘master plan’. It outlines a wide‐ranging set of factors that need to be considered, including the necessity to go beyond ‘control’ strategies to more pro‐actively dealing with demand, a move which should be underpinned by quality research. 相似文献
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