John Law (1671-1729) left a remarkable legacy of economic concepts from a time when economic conceptualization was very much at an embryonic stage. Yet he is best knownDLand generally dismissedDLtoday as a rake, duellist, and gambler. This intellectual biography offers a new approach to Law, one that shows him to have been a significant economic theorist with a vision that he attempted to implement as policy in early-eighteenth-century Europe.