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Projecting meat and cereals demand for China based on a meta-analysis of income elasticities

机译:基于收入弹性的META分析,对中国的肉类和谷类需求进行预测

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摘要

There are many projections for China's food demand, and the projection results differ significantly from each other. Different values for income elasticities could be a major reason. This study projects meat and cereals demand for China based on a meta-analysis of the income elasticity estimates using a collection of 143 and 240 income elasticity estimates for cereals and meat products, respectively, from 36 primary studies. We find that income elasticities for most cereals (general cereals, rice, and coarse grains) and all meat products (general meat, pork, poultry, beef & mutton) tend to decline as per capita income increases, except for wheat, which increases. Taking this into account, differences between consumption projections based on time-varying income elasticities and values based on constant elasticities are substantial in quantities and increase over time.
机译:对中国粮食需求的预测很多,而且预测结果彼此之间也有很大差异。收入弹性的不同值可能是主要原因。这项研究基于对收入弹性估算值的荟萃分析,通过对36项主要研究分别收集了143和240种谷物和肉类产品的收入弹性估算值,对中国的肉类和谷物需求进行了预测。我们发现,大多数人的谷物(普通谷物,大米和粗粮)和所有肉类产品(普通肉,猪肉,禽肉,牛肉和羊肉)的收入弹性都随着人均收入的增加而下降,但小麦除外。考虑到这一点,基于时变收入弹性的消费预测与基于恒定弹性的价值之间的差异是巨大的,并且会随着时间而增加。

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