目前， 世界经济正朝着国际化、地区化方向快速发展。 这种国际化、地区化时代的到来，不仅加速了国家间经济共同体的形成，而且还促进了地方间的经济合作与交流。与西方国家相比，环东海（日本海）地区的国家虽然拥有很大的经济合作发展潜力，但始终没有像西方国家那样较容易地形成经济共同体。为此，本论文提出了加强环东海（日本海）地方间经济合作的设想，并认为地区间的经济合作较国家间的经济合作更具有其可行性和可操作性。所以，首先从地方间的经济合作入手，率先构筑地区间的经济合作共同体，将会对该地区的经济繁荣与发展更为有效。
In recent years, world economy shows more and more features of internalization and localization, which not only accelerate the formation of an economic community among countries, but also promote the economic cooperation and communication among different regions. Although East Sea (Japan Sea) Rim countries demonstrate great economic potential, it is not as easy for them to form an economic community as for western countries. Considering this, the thesis assumes that East Sea (Japan Sea) Rim countries should reinforce the economic cooperation among local regions, and also maintains that the local economic cooperation is of greater feasibility and operability than the national cooperation. Therefore, to form a local economic cooperative community will be a more effective way to strengthen the economic prosperity and development of the East Sea (Japan Sea) Rim region.
In the first part, the thesis explains the concept of the East Sea (Japan Sea) Rim region and lists several patterns of the economic cooperation in this region. Particularly, it focuses on the differentiation of two geographical terms—the Northeast Asia region and the East Sea (Japan Sea) Rim region, the illustration of the necessity of the economic cooperation among local regions within the East Sea (Japan Sea) Rim region, and several patterns of the economic cooperation proposed by Chinese, Japan and South Korean scholars and experts.
In the second part, the thesis makes a systematic and thorough analysis on the background, current situation and characteristics of the economic communication and cooperation in the East Sea (Japan Sea) Rim region, and also comments on the present progresses and existing problems. The thesis maintains that “The Conference of the East Sea (Japan Sea) Rim Region for Governors” which has been held for ten years in succession has greatly promoted the economic cooperation within this region; local governments are more active than central governments and have become the “chief character” in establishing the economic community of the East Sea (Japan Sea) Rim region. The thesis also predicts for the future of the East Sea (Japan Sea) Rim region. On the one hand, the economic cooperation will not show a rapid development in a short term. Countries in this region are significantly different in their political systems and uneven in their economic development; some historical problems have not been solved yet; meanwhile, new problems are still emerging; people from different countries often possess different ideologies and values. All of the differences and problems will greatly hinder the cooperative development of the East Sea (Japan Sea) Rim region. On the other hand, the latent potential for development is great and the long-term prospect is certainly very promising in this region. Due to the acceleration of the globalization of world economy and the integration of regional economy, the economic development of the Northeast Asia region, and the deepening of the mutual understanding and the increasing agreement of attitudes among all sides, it is sure that more and more achievements will be accomplished by the economic cooperation within the East Sea (Japan Sea) Rim region and countries within this region will be more and more prosperous.
In the third part, the thesis introduces and analyzes respectively the economic development situation and industrial structure of three places within the East Sea (Japan Sea) Rim region —Jilin Province in China, Primorsky Krai in Russia, and Gangwon-do in South Korea— in order to find out the methods to enlarge the economic cooperative scope among the three nations, and to further accelerate the economic development in this region.
In the fourth part, the thesis proposes five suggestions in realizing the common prosperity of the Northeast Asia region: the first is to accelerate the construction of a reasonable and smooth logistics system among the three places; the second is to reinforce the cooperation among the economic development zones in the three places; the third is to cooperatively exploit and utilize the tourism resources in the three places; the fourth is to fully exert the functions of the economic organizations in the three places; the fifth is to establish economic cooperation as the central concern among the three places.