Li v. Yellow Cab Co. of California, 13 Cal. 3d 804, 119 Cal. Rptr. 858, 532 P.2d 1226 (Cal. 1975)
Li v. Yellow Cab Co.
Should California abandon the all-or-nothing defense of contributory negligence and adopt comparative negligence, and if so, should it be pure comparative negligence and what are the resulting effects on last clear chance and assumption of risk doctrines?
California replaces the common-law defense of contributory negligence with pure comparative negligence. Under pure comparative negligence, the trier of fact assigns percentages of fault to all negligent parties, and the plaintiff's recoverable damages are reduced in proportion to the plaintiff's share of fault, regardless of whether that share exceeds 50 percent. The last clear chance doctrine is abolished as unnecessary under comparative fault. Implied or secondary assumption of risk is merged into comparative negligence and functions as a factor in apportioning fault, while express assumption of risk (such as by contract) remains a complete defense where validly established.
The California Supreme Court adopted pure comparative negligence, abolishing contributory negligence as a complete bar to recovery, abrogated the last clear chance doctrine, and subsumed implied assumption of risk into comparative negligence. The case was remanded for proceedings consistent with these principles so that fault and damages could be apportioned between the parties.
Li is the seminal California case establishing pure comparative negligence, a bedrock principle in modern tort law. It illustrates how courts can reform judge-made doctrine, how a shift in one defense reverberates through related doctrines, and how policy considerations of fairness and deterrence guide common-law evolution. For law students, Li is a foundational authority on comparative fault, the demise of last clear chance, the treatment of implied assumption of risk, and the methodology courts use when choosing between pure and modified comparative negligence.