When a tort rule is fully aligned, harms are valued equally across the elements. Because the valuation of harm within duty equals the valuation within the damages remedy, a fully aligned rule gives dutyholders the option to fully comply with the duty with respect to any harm by paying (the...

Legal scholars have extensively analyzed legal entitlements in terms of more fundamental component parts, most notably with the remedial structures entailed by property and liability rules. Contrary to the claim made by some scholars, I argue that the negligence entitlement is not fully...

Legal ambiguity refers to an unknown outcome regarding the requirements of a legal rule or body of law, as applied to a set of known facts, for which the probability cannot be confidently or reliably defined and must be estimated by decision makers. The legal ambiguity generated by the tort...

Two chapters from the third edition of Principles of Products Liability (Foundation Press 2020), a state-of-the-art study of products liability. The book shows how ancient laws have evolved into liability rules capable of solving the safety questions raised by new or emerging technologies,...