Rationalizing Boundedly Rational Choice

A Rational Shortlist Method (RSM) translates into economic language some sequential choice heuristics studied in psychology. We show that the use of this boundedly rational procedure can be detected from observed choice data through tests that are very similar to those used to detect `rational' choice (such as Samuelson's WARP). Yet, RSMs are compatible with some highly `irrational' patterns of choice observed in experiments, such as pairwise cycles. We also provide partial results on a generalization of RSMs.