Sir John Hicks (1904–89) was a leading economic theorist of the twentieth century, and along with Kenneth Arrow was awarded the Nobel Prize in 1972. His work addressed central topics in economic theory, such as value, money, capital, and growth. An important unifying theme was the attention to economic rationality ‘in time’ and his acknowledgment that apparent rigidities and frictions might exert a positive role as a buffer against excessive fluctuations in output, prices, and employment. This emphasis on the virtue of imperfection significantly distances Hicksian economics from both the Keynesian and monetarist approaches. Containing contributions from distinguished theorists in their own right (including three Nobel Prize-winners), this volume examines Hicks’s intellectual heritage and discusses how his ideas suggest a distinct approach to economic theory and policy-making. It will be of great interest to scholars and students of economic theory and the history of economic thought.