We introduce adding-up, convexity, and noninferiority into the weak axiom of revealed preferences and show how we can use this approach to detect and measure structural change without estimation or subjective input. We use this new approach to measure taste changes among meats for the United States, Canada, Japan, and South Korea.
Sakong, Yong and Hayes, Dermot J., "A Test for the Consistency of Demand Data with Consumer Preference Theory" (1992). CARD Working Papers. 111.