The U.S. demand for imported and domestically produced foods: An investigation of intertemporal and substitution effects
构建了多期规划的理论模型，估计美国对进口和国产食品的需求，发现进口食品的当前购买受预期未来价格影响。
Abstract This article extends the literature on time series estimation of U.S. consumer demand by presenting a coherent theoretical structure with a multi-period planning horizon for consumer choice and a more general treatment of the aggregation problem that allows the possibility that consumers' tastes change over time and vary across individuals. Based on our theoretical model, an econometric model is used to obtain estimates in a multi-period context of U.S. demand for imported foods and domestically produced foods. The hypothesis that current purchases depend on expected future prices is supported by the empirical results for imported foods.