Estimating Discrete-Choice Models of Product Differentiation
提出一种估计差异化产品市场供需模型的方法，通过反推市场份额方程得到效用均值，并用工具变量处理价格内生性，适用于寡头市场分析。
This article considers the problem of supply-and-demand analysis on a cross section of oligopoly markets with differentiated products. The primary methodology is to assume that demand can be described by a discrete-choice model and that prices are endogenously determined by price-setting firms. In contrast to some previous empirical work, the techniques explicitly allow for the possibility that prices are correlated with unobserved demand factors in the cross section of markets. The article proposes estimation by inverting the market-share equation to find the implied mean levels of utility for each good. This method allows for estimation by traditional instrumental variables techniques.