Heltberg Rasmus
The World Bank, Washington, DC, USA.
Health Econ. 2009 Apr;18 Suppl 1:S77-88. doi: 10.1002/hec.1462.
This paper argues that indicators of anthropometric shortfall - especially low height and low weight-for-age - are uniquely suited for assessing absolute deprivation in developing countries. Anthropometric indicators are relatively precise, readily available for most countries, reflect the preferences and concerns of many poor people, consistent with reckoning the phenomenon directly in the space of functionings, intuitive, easy to use for advocacy, and consistent over time and across subgroups. Anthropometric indicators can therefore complement (but not replace) standard indicators of income/consumption poverty, especially for comparisons across subgroups, within households, across countries, and in the long run. In addition, the paper analyses spells of change in malnutrition over time, finding that the association between economic growth and chronic child malnutrition is very small (but statistically significant) and much lower than the elasticity of growth on poverty. The policy implication of this finding is that direct interventions aimed at reducing infant malnutrition are required.
本文认为,人体测量不足指标——尤其是低身高和低年龄别低体重——特别适合用于评估发展中国家的绝对贫困状况。人体测量指标相对精确,大多数国家都易于获取,反映了许多贫困人口的偏好和关切,与在可行能力空间中直接考量这一现象相一致,直观,便于用于宣传,且随时间推移和不同亚群体保持一致。因此,人体测量指标可以补充(但不能取代)收入/消费贫困的标准指标,特别是在跨亚群体、家庭内部、国家之间以及长期的比较中。此外,本文分析了营养不良随时间变化的阶段,发现经济增长与儿童慢性营养不良之间的关联非常小(但具有统计学显著性),且远低于增长对贫困的弹性。这一发现的政策含义是,需要采取直接干预措施来减少婴儿营养不良。