Before his untimely death in 2000, the brilliant young Israeli economic historian Klug conducted a thorough survey into the different theories of international trade. The results of this are now available here for the first time with an introduction from Warren Young and Michael Bordo. Utilizing the inter-temporal open economy model as a case study, Theories of International Trade illuminates the phenomenon of recurrence and the problem of recurring doctrines in economic thought and analysis. This compelling book will be of interest to scholars in the history of economic thought, and to international economists in general.