Revealed Price Preference: Theory and Empirical Analysis
提出一种基于需求数据的价格偏好揭示关系，通过检验价格循环性来刻画消费者在消费效用与支出负效用之间的权衡，并应用于单主体和重复截面数据，开发了部分识别参数的线性假设检验方法，用于评估价格变化对人口福利的影响。
Abstract To determine the welfare implications of price changes in demand data, we introduce a revealed preference relation over prices. We show that the absence of cycles in this relation characterizes a consumer who trades off the utility of consumption against the disutility of expenditure. Our model can be applied whenever a consumer’s demand over a strict subset of all available goods is being analysed; it can also be extended to settings with discrete goods and non-linear prices. To illustrate its use, we apply our model to a single-agent data set and to a data set with repeated cross-sections. We develop a novel test of linear hypotheses on partially identified parameters to estimate the proportion of the population who are revealed better off due to a price change in the latter application. This new technique can be used for non-parametric counterfactual analysis more broadly.