Abstract

Peter of John Olivi’s Tractatus de contractibus is nowadays regarded as an important document in the history of economic thought.1 Modern scholars have proposed various interpretations of its exact contribution. Many aspects of Olivi’s argumentation have been traced to earlier discussions concerning the Roman and Canon laws, as well as to theological and philosophical literature on economic questions, but his overall approach has also been credited for transforming the medieval framework in a profound way.2 His definition of capital, recognition of “probable profit”, qualified acceptance of receiving interest for loans, and his keen eye for understanding actual economic practices have been discussed in...