‘In his deeply erudite introduction, Philipp Rössner offers a vivid contextualization of Luther’s thinking on how commerce should be managed in order to promote a proper Christian society. Rössner not only explores Luther’s ideas on commerce and ethics from the point of view of modern economics, but he uses Luther’s perspective as a critical lens through which he examines, with great nuance and clarity, the state of economic reasoning today.’ —Carl Wennerlind, Columbia University