A growing body of literature suggests that courts and juries are inclined toward division of liability between two strictly non-negligent or "vigilant" parties. In this paper, we explore the economic efficiency of liability rules based on comparative vigilance. We devise rules that are efficient...

Judge Learned Hand's opinion in United States v. Carroll Towing Co. (1947) is canonized in the law-and-economics literature as the first use of cost-benefit analysis for determining negligence and assigning liability. This article revisits the case in which the Hand formula was born and examines...