Economic development has been for many years the dominant national policy objective of the countries in the Third World, but there has been little consensus on the goals and definitions of development. Focusing on the era since World War II, H. W. Arndt traces the history of thought about economic development to show readers, in nontechnical terms, what the development objective has meant to political and economic theorists, policymakers, and politicians from Adam Smith to Ayatollah Khomeini.