Will Developing Country Nutrition Improve with Income? A Case Study for Rural South India
质疑收入增长是改善贫困地区营养的主要机制，通过印度南部农村数据发现，收入对营养的弹性可能接近于零，因为高收入时单位营养价格上升被忽视。
The World Bank and others maintain that the major mechanism for improving nutrition in poor communities is increases in income. Aggregate estimates of food expenditure are consistent with such a possibility, implying income/expenditure elasticities close to one. However, the high degree of aggregation at which such estimates are made means that the considerable increase in price per nutrient as income increases is ignored, and the nutrient elasticities are therefore overstated. Estimates for a rural south Indian sample indicate that this bias is considerable and that the true nutrient elasticities with respect to income may be close to zero. Copyright 1987 by University of Chicago Press.