This Article aims to unveil and undermine one of the most resonant truisms in contract law. It shows that a dominant criterion used by courts and academics in applying the omnipresent and overarching principle of good faith is essentially flawed. Our argument is innovative in at least four...

I introduce a model of community standards relevant to the judicial determination of obscenity. Standards are defined as subjective judgments restricted only by a simple reasonableness condition. Individual standards are aggregated to form the community standard. Several axioms reflect legal...

I introduce a model of shareholder voting. I describe and provide characterizations of three families of shareholder voting rules: ratio rules, difference rules, and share majority rules. The characterizations rely on two key axioms: merger consistency, which requires consistency in voting...

I study a model of group identification in which individuals' opinions as to the membership of a group are aggregated to form a list of group members. Potential aggregation rules are studied through the axiomatic approach. I introduce two axioms, meet separability and join separability, each of...

Patent licensing contracts commonly prohibit licensees from challenging the validity of the patents at the basis of the contract or penalize such challenges. A considerable debate has emerged as to whether courts should enforce these challenge clauses. We argue that this debate has not gone far...

I propose a model of aggregation of intervals relevant in two contexts: the study of legislative delegation and the study of legal standards of behavior. Six axioms: responsiveness, anonymity, continuity, strategyproofness, and two variants of neutrality are then used to prove several important...