The Demand for Food and Calories
研究印度农村家庭营养与支出关系，发现卡路里消费对总支出的弹性为0.3-0.5，且随生活水平提高下降缓慢，反驳了收入受营养约束的观点。
The authors investigate nutrition and expenditure in rural Maharashtra in India. They estimate that the elasticity of calorie consumption with respect to total expenditure is 0.3-0.5, a range that is in accord with conventional wisdom. The elasticity declines only slowly with levels of living and is far from the value of zero suggested by a recent revisionist literature. In these Indian data, the calories necessary for a day's activity cost less than 5 percent of the daily wage, which makes it implausible that income is constrained by nutrition rather than the other way around. Copyright 1996 by University of Chicago Press.