73 N.Y.2d 487 (1989)
When plaintiffs cannot identify the manufacturer of a fungible product (DES) that caused their injury, liability is apportioned among manufacturers based on their national market share at the time of exposure, and defendants cannot exculpate themselves by proving they did not manufacture the specific dose ingested by the plaintiff’s mother.
Summary
This landmark case addresses liability for injuries caused by diethylstilbestrol (DES), a drug administered to pregnant women. Plaintiffs, unable to identify the specific manufacturer of the DES ingested by their mothers, sued multiple manufacturers. The New York Court of Appeals adopted a “national market share” theory, holding that liability should be apportioned based on each manufacturer’s share of the national DES market at the time of the plaintiff’s mother’s ingestion. Critically, the court rejected the possibility of exculpation; a manufacturer could not escape liability even if it proved it did not produce the specific pills ingested. This decision balances the need to provide redress for injured plaintiffs with the difficulties of proving causation in DES cases.
Facts
Multiple plaintiffs brought suit against numerous drug manufacturers, alleging injuries resulting from their mothers’ ingestion of DES during pregnancy. The plaintiffs were unable to identify which specific company manufactured the DES their mothers took, a common problem due to the generic nature of the drug and the passage of time.
DES was prescribed to pregnant women to prevent miscarriages, but was later found to cause various health problems in their daughters.
Traditional tort law requires plaintiffs to prove that a specific defendant’s actions caused their injuries. This requirement posed a significant obstacle for DES plaintiffs.
The plaintiffs sued multiple DES manufacturers, seeking to hold them liable based on theories of concerted action, alternative liability, and market share liability.
Procedural History
Several lower court cases involving DES-related injuries were consolidated for appeal.
The Appellate Division certified questions to the New York Court of Appeals regarding the appropriate theory of liability to apply in DES cases.
The Court of Appeals granted leave to appeal to address the novel issues presented by the DES litigation.
Issue(s)
Whether a DES manufacturer can be held liable for a plaintiff’s injuries even if the plaintiff cannot identify that manufacturer as the specific producer of the DES ingested by the plaintiff’s mother.
Whether, under a market share theory of liability, a DES manufacturer should be permitted to exculpate itself by proving that it did not manufacture the specific DES ingested by the plaintiff’s mother.
What constitutes the appropriate market (national vs. local) for determining market share.
Whether joint and several liability or several liability should apply to DES manufacturers held liable under a market share theory.
Holding
Yes, because under a market share theory, liability is apportioned based on a manufacturer’s overall risk contribution to the market, not on proof of direct causation in each individual case.
No, because exculpation would undermine the goal of providing a remedy for injured plaintiffs and would be inconsistent with the risk-based rationale of market share liability.
The relevant market is the national market, because focusing on a national market provides a more accurate reflection of the overall risk created by each manufacturer.
Several liability applies, because joint and several liability would unfairly penalize manufacturers with a small market share.
Court’s Reasoning
The court rejected traditional tort principles requiring identification of the specific tortfeasor because it recognized the unique difficulties faced by DES plaintiffs in proving causation. The court stated: “[W]e are presented with aHelp us understand a problem that has caused great suffering, and which has no clear solution under traditional tort law principles.”
The court adopted a market share theory, reasoning that each manufacturer contributed to the overall risk of injury by marketing DES, and therefore should bear a portion of the responsibility for the resulting harm. The court reasoned that “the wrongdoers are better able to bear the cost of the injury than are the innocent victims”.
The court explicitly rejected allowing manufacturers to exculpate themselves, finding that such a rule would “frustrate” the goal of providing a remedy. According to the court, this is because “…the ever-present possibility of exoneration would undermine the efficacy of the remedy.”
By adopting a national market share, the court aimed to achieve a more equitable apportionment of liability, reflecting the overall risk created by each manufacturer’s conduct across the entire country. The court stated that “…over the course of many years, each company’s share of the market will approximate its responsibility for the risk of injury to the population”.
The court also rejected the imposition of joint and several liability, concluding that it would unfairly burden smaller manufacturers with a disproportionate share of the damages. The court decided that “…each defendant’s liability for injuries would be several only, and would be based on its share of the national market.”
A dissenting opinion, argued that precluding exculpation was inconsistent with traditional tort principles of causation and fairness.