Harry Johnson (1923-1977) was such a striking figure in economics that Nobel Laureate James Tobin designated the third quarter of the twentieth century as "the age of Johnson." Johnson played a leading role in the development and extension of the Heckscher-Ohlin model of international trade, wrote fundamental articles on the balance of payments and later developed the monetary approach to the balance of payments. Within monetary economics he was also a seminal figure who, in a series of surveys, identified and explained the links between the ideas of the major post-war innovators. This book chronicles his intellectual development and his contributions to economics, economic education, and, particularly in Canada and Britain, the discussion of economic policy.