 Olivi provides more detailed set of criteria for determining the limits of just price in various situations in scholastic literature (Kaye 2014, p. 114). Among these criteria are the obvious quality of the commodity, the materials and the amount of work needed to produce it, and rarity, but also individual desires and personal values (De contractibus 1.1, pp. 98–102; Toivanen 2016b). Further, he argues that the just price is affected by social factors such as common estimation and common needs, and that ultimately economic activity exists for the sake of the common good of the community (Tractatus de contractibus 1.2, pp. 108–10). In this way, Olivi’s analysis reflects the fact that medieval economic discourse was fundamentally normative and related to moral theology—unlike contemporary economics, which is more descriptive and lacks the normative dimension (Piron 2012).