Boundedly rational demand
针对消费者并非完全理性优化的现实，提出一个允许偏好和选择行为异质的模型，利用最小理性条件识别消费者剩余的可能范围，并给出反事实需求的界限。
Evidence suggests that consumers do not perfectly optimize, contrary to a critical assumption of classical consumer theory. We propose a model in which consumer types can vary in both their preferences and their choice behavior. Given data on demand and the distribution of prices, we identify the set of possible values of the consumer surplus based on minimal rationality conditions: every type of consumer must be no worse off than if they either always bought the good or never did. We develop a procedure to narrow the set of surplus values using richer data sets and provide bounds on counterfactual demands.