In light of research indicating that individual behavior may violate standard assumptions of rationality, we modify the standard model of preference aggregation to study the case in which neither individual nor collective preferences are required to satisfy transitivity or other coherence...

Appellate courts sometimes issue inconsistent decisions. Individual judges are sometimes inconsistent too. We argue that making judges more consistent could exacerbate the problem of inconsistent courts. We do so through a variant of Arrow's model of preference aggregation in which preferences...