A History of Economic Thought is a text for undergraduate history of economic thought courses. It covers the major writers and schools of thought; in doing so, it reveals not only ideas, but relevant stories of the lives of the great economic thinkers. It offers a comprehensive coverage of the latest technical advances in economic theory including contemporary developments in microeconomics as well as discussions of the rational expectations revolution. Contemporary economics, although written in a mathematical language not used by most economists in the long history of the subject, is a continuation of many of the concerns of the past, and the text explores the ways in which the economics of our age – indeed, any age – develops out of both the writings of the past and the concerns of the present.