Changes in the Structure of Global Food Demand
使用新开发的系统估计食品需求对人均支出变化的响应，并预测2020年食品需求结构变化，发现低收入国家食品消费将从谷物转向畜产品。
A newly developed demand system is used to estimate the response of food and food product demand to per capita expenditure changes. The resulting Engel elasticities are then used to project food and food product demand in 2020 assuming per capita expenditure and population changes. Results suggest that while food expenditure is projected to grow, it accounts for a smaller proportion of total expenditure. Further analysis indicates change in the composition of food demand away from a grain and towards livestock is projected to occur in lower income countries in 2020.