Can Agricultural Interventions Improve Child Nutrition? Evidence from Tanzania
研究了坦桑尼亚一项为小农户提供新技术组合的农业干预对儿童身高年龄比的影响，发现参与家庭儿童的身高年龄比提高约0.9个标准差，发育迟缓率下降约18个百分点。
Severely reduced height-for-age due to undernutrition is widespread in young African children, with serious implications for their health and later economic productivity. It is primarily caused by growth faltering due to hunger spells in critical periods of early child development. We assess the impact on early childhood nutrition, measured as height-for-age, of an agricultural intervention that improved food security among smallholder farmers by providing them with a “basket” of new technology options. We find that height-for-age measures among children from participating households increased by about 0.9 standard deviations and the incidence of stunting among them decreased by about 18 percentage points.