This is the sixth edition of a textbook that has been instrumental in introducing a generation of students to the history of economic thought. It charts the development of economics from its establishment as an analytical discipline in the eighteenth century through to the late 20th Century. The book discusses the work of, amongst others, Ricardo, Malthus, Marx, Walras, Marshall, Keynes as well as the institutionalists, the Chicago School and the emergence of econometrics. This edition has been fully revised and updated and includes: * chronologies of the key dates in the development of economics * extracts from original texts * an examination of how the study of the history of economic thought impinges upon modern thinking.