GRID Method

1. Slides to accompany Revealed Preferences over Risk and Uncertainty (with John K.-H. Quah and Ludovic Renou).

R Code

1. warshall.R -- computes the transitive closure of a (direct) revealed preference relation.
2. garp.R -- checks the Generalized Axiom of Revealed Preference (GARP).
3. e_garp.R -- checks e-GARP, i.e., GARP at a given cost efficiency threshold.
4. ccei_garp.R -- calculates the Critical Cost Efficiency Index (CCEI) for utility maximization.
5. rand.x.R -- generates uniformly random consumption data.