This text surveys the anthropological foundations to the disciplines of economics and moral theology. The first part of the book presents an overview of the German, French, and Polish branches of personalist thought. Particular attention is given to theological anthropology, especially as it is developed by such thinkers as Emmanuel Mounier, Max Scheler, Gabriel Marcel, Karol Wojtyla, and Emil Brunner. Part two surveys models of human nature that have been espoused by various schools of free-market thought - including mainstream neoclassical economics. In conclusion, the authors demonstrate how an expanded understanding of human nature can augment the ability of economic science to model and predict human behaviour.