2024/03/20 by Christopher P. Chambers, Chambers, Christopher P., Christopher Turansick +1
Economics, Econometrics and Finance · #Economic Theory and Institutions #FOS: Economics and business #Theoretical Economics (econ.TH)
paper · pdf · doi:10.48550/arxiv.2403.13773
openalex publication_date 2024/03/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper uncovers tight bounds on the number of preferences permissible in identified random utility models. We show that as the number of alternatives in a discrete choice model becomes large, the fraction of preferences admissible in an identified model rapidly tends to zero. We propose a novel sufficient condition ensuring identification, which is strictly weaker than some of those existing in the literature. While this sufficient condition reaches our upper bound, an example demonstrates that this condition is not necessary for identification. Using our new condition, we show that the classic ``Latin Square" example from social choice theory is identified from stochastic choice data.