Since the beginning of capitalism—with its mathematical equations and laws of supply and demand—its champions have claimed that studying the moral aspects of the theory interfere with its natural function. Yet, as this ethicist and theologian argues, economies are always deeply integrated in social relationships, in morality, and in ethics. Using historical examples, the book argues that when economically hard-pressed people come together to defend their common rights, they are giving voice to the principle of a moral economy that does not cheat the lower classes. Particular attention is paid to the 18th-century English food riots, the spontaneous resistance of 20th-century Malaysian farmers, and the North Americans who picketed the homes of Wall Street bankers in 2008 and 2009.