Portuguese Agriculture in Transition represents the synthesis of a six-year study undertaken by nine social scientists from the University of Arizona, Stanford University, Göttingen University, and the University of Lisbon, aimed at improving the efficiency and productivity of Portuguese agriculture. The fourteen essays seek to explain the constraints that affect the making of agricultural policy in Portugal, the sources of comparative advantage within the agricultural sector, and the technical innovations that have recently begun to change farming in the northwest of the country.