CLP Academic has now released On Exchange, a new translation of a key section in Martín de Azpilcueta’s Manual de confesores y penitents, his most influential work.
Originally published in 1549, the section was included as one of four appendices to the Manual, offering commentary on Gregory IX’s prohibition of nautical usury. The release is part of the growing series, Sources in Early Modern Economics, Ethics, and Law.
Azpilcueta (1492-1586), also known as Doctor Navarrus, was a leading canonist and moral theologian of the early modern period. Although On Exchange was meant to provide moral guidance for pastors and penitents, it has drawn the attention of economic historians for its indirect analysis of 16th-century economic realities, including explorations on exchange practices, supply and demand, and the nature of money. As noted in the book’s overview, Azpilcueta’s “account of the fluctuation of the value of money marks a significant development in early modern economic thought.” (more…)