二次世界大戰後，隨著全球事務的複雜化，跨國經濟活動、新科技與網路的發達，加遽了人與人之間的交流與互動，也使得國際間的相互依賴愈來愈加深與頻繁，從而大幅改變國際關係之面貌，致使國與國之間的界線也變得模糊。非政府組織的興起意味著傳統以「國家為國際事務主要成員」的觀點受到質疑與挑戰，當各國治理範疇逐步縮減時，非政府組織卻開始填補了政府在國際活動方面的空缺，在國際社會中快速擴張，因此，在進行國際援助時，若非政府組織與政府之間如能相互協力，應比其中任何一方單打獨鬥更能..

After World War II, with the complexity of international affairs, cross border economic activities, new technology and the internet contributed to the increase of human interaction. This also increases the interdependence between countries, as well as the changes in international relationships made the borders among countries more and more vague. The rise of Non- Government Organizations (NGOs) indicated that the concept of “nations as the main player in international affairs” is being challenged. NGOs gradually t..

有別於戰後以來政治思想史、歷史與文化的研究，多元主義於 1970 年代中期後在日本政治學界正式登場。利用個案研究、深度訪談與調查計量方法，多元主義針對現代日本政治的運作進行實證分析，而日本的政經與社會結構也出現多元化的現象，賦予多元主義解釋的有效性，使得多元主義研究蔚為日本政治學的新潮流。然而，1993 年自民黨的下野，以及聯合政權形態的常態化，政治決定架構出現重大的轉變，多元主義在此挑戰下，採取政策爭論點研究途徑與特定行為者的個案研究，努力建構普遍的解釋模..

Differs to the traditional approaches of political theory history and the historical-cultural studies in postwar Japan, the pluralism approach had been introduced and connected to Japan’s political studies since the mid-1970s. Because of various changes of political, economic and social structure in Japan, the pluralism approach, which especially emphasizes on the research methods such as case study, in-depth interview and survey study, was efficiently utilized to analyze Japan’s practical politics and gradually b..