Northeast Asia today is largely a geographical referent rather than a political entity or an economic unit. China, Japan, North and South Korea, Mongolia, and Pacific Russia remain politically suspicious of each other and economically unintegrated. They share neither a common cultural identity nor a unifying world view, and they have virtually no experience in collective problem solving or in developing institutions for multilateral cooperation. State institutions remain dominant and nationalism remains a powerful force in the region's international relations. However, the growing importance of economics on domestic and foreign policy agendas has led to a call for multilateral economic cooperation at the regional level. In this book, experts from the respective countries and the United States examine the desirability and feasibility of regional economic cooperation, highlighting the dominant national perspectives in the region and the implications of ongoing economic changes for national and international security.