Forms of Scale Curves and Differential Inverse Demand Systems
重新解释了微分逆需求系统中的规模效应,定义了规模曲线,证明Brown、Lee和Seale的合成模型与Box-Cox规模曲线具有相同的规模效应,并通过日本生鲜食品需求数据说明规模曲线既非线性也非对数线性。
Abstract This article provides a new interpretation of the scale effects in differential inverse demand systems. A scale curve is defined as a curve that shows how the expenditure share of a good or service changes as the consumption level changes. It is shown that Brown, Lee, and Seale's synthetic model has the same scale effects as do the Box‐Cox scale curves. In this light, their model is not a mere composite but a model in its own right. An empirical illustration given for Japanese fresh food demand suggests that the underlying scale curves differ from both linear and loglinear forms.