Nutrition Transition and Changing Food Preferences in India
利用印度家庭调查数据，估计了随时间变化的需求弹性，发现谷物在家庭饮食中的重要性下降，收入弹性降低而价格弹性增加，且谷物与动物产品呈替代关系，为印度食品政策设计提供依据。
Abstract We present empirical evidence on how changes in food preferences have contributed to nutrition transition, where the dietary pattern of households shifts away from traditional staples. Using household‐level time series cross‐section survey data for India, we estimate time varying demand elasticities, revealing evidence of the declining importance of cereals in Indian household diets. The estimates show that Indian demand for cereals has become more income inelastic and price elastic. We also find that cereals are a substitute rather than a complement to animal products in household diets. Since changes in elasticities can only be attributed to variation in utility parameters, this indicates that cereals are losing favour with Indian households. These findings have implications for Indian food policy design and implementation.