The Neoclassical Model of Consumer Demand with Identically Priced Commodities: An Application to Time-of-Use Electricity Pricing
利用希克斯定理，证明即使商品价格相同，也能通过计量估计识别其收入弹性和价格弹性，并以威斯康星居民电价实验数据为例，用广义里昂惕夫间接效用函数建模六种商品的需求。
Hick's theorem permits aggregation of commodities when their relative prices are fixed, but, contrary to a widely expressed view, it does not require that they be aggregated. Even where commodities have identical prices, all of their income elasticities and many of their price elasticities can be identified through econometric estimation. Our empirical illustration uses the generalized Leontief indirect utility function with data from the Wisconsin Residential Electricity Pricing Experiment. We model the demand for six commodities although there are only two unique prices.