Prices and Quality Effects in Cross‐Sectional Demand Analysis
澄清了横截面价格变动的来源与含义，提出区分质量效应与供给相关价格变动的理论及计量框架，用于估计横截面需求函数。基于1977-78年全国食品消费调查数据的实证表明，对同质化食品商品，忽略质量效应导致的参数差异较小。
Abstract A conceptual clarification of the sources and meaning of cross‐sectional price variability is used to motivate a theoretical and econometric framework for the estimation of cross‐sectional demand functions. Quality effects are distinguished from supply‐related price variability to identify cross‐sectional demand for disaggregated food commodities. An empirical application using data from the 1977–78 Nationwide Food Consumption Survey indicates that parameter differences resulting from a failure to adjust cross‐sectional prices for quality effects are likely to be small for relatively homogenous, disaggregated food commodities.