Measuring Rationality with the Minimum Cost of Revealed Preference Violations
提出一种新指标：最小成本指数，通过计算打破所有显示偏好循环的最小成本来衡量一组选择与理性的接近程度，并应用于家庭消费面板数据。该指标同时考虑违反的数量和严重程度。
We introduce a new measure of how close a set of choices is to satisfying the observable implications of rationality and apply it to a large, balanced panel of household level consumption data. This new measure, the minimum cost index, is the minimum cost of breaking all revealed preference cycles found in choices from budget sets. Unlike existing measures of rationality, it responds to both the number and severity of revealed preference violations.