Household Water Demand Seasonal Elasticities: A Stone-Geary Model under an Increasing Block Rate Structure
利用亚利桑那州图森市的面板数据，通过Stone-Geary模型估计家庭用水需求，发现价格弹性随消费量、价格和收入变化，且存在季节性差异和消费者价格响应下降趋势。
Using household-level panel data from Tucson, Arizona, and a unique set of highly disaggregated control variables, we estimate residential demand for water via a Stone-Geary specification. The Stone-Geary functional form allows price elasticity of demand to vary with quantity consumed, price, and income and enables estimation of a threshold level of consumption below which demand is considered perfectly price inelastic. An encompassing test of consumer price response reveals evidence favoring a lagged average price specification rather than one using lagged marginal price. The estimated model also finds substantial seasonal variation in price elasticity and declining consumer price responsiveness.