“Keeping Faith, Losing Faith: Religious Belief and Political Economy” considers the historical and current relationship between religious and economic schools of thought. The volume explores the integration of theology and economics that was prevalent before the twentieth century, the rise of secular neoclassical economic models in the middle of that century, and the recent trend toward examining economic behavior through the prism of religious belief.Two of the essays examine the antagonism between Christianity and utilitarianism in postrevolutionary French economics and the rising influence of the materialism of the market vis-à-vis the declining authority of the Roman Catholic Church in eighteenth-century Europe. Other topics explored include the work of the great American neoclassicist Frank Knight, the combination of utility analysis and Christian principles among the “clerical economists” in America, and the effect of a crisis of personal faith on the theories of the English philosopher and economist Henry Sidgwick.