2016年日本通過宇宙2法，揭櫫推動民間升空商機、遙測數據商業等目標，目的在於擴大日本太空商業活動與世界太空市場接軌。其次，2017年美國NASA公布「阿緹米斯計畫」（Artemis program），基於美日同盟和美日安保，日本也積極參與美國主導的月球計畫；日本第5期《宇宙基本計劃》（2023∼2033年）表明日本邁入國際太空合作的動向，並且推出「宇宙安全保障構想」。就此，本文整理日本對應新太空時代的動向、太空與安保、太空民主聯盟等觀點，採用理性抉擇理論的「偏好—機..

In 2016, Japan passed the Space Act which aims to promote private space launch opportunities and the commercialization of remote sensing data, with the goal of expanding Japan’s space commercial activities and aligning with the global space market. Secondly, in 2017, NASA announced the Artemis program (Lunar Program). Based on the U.S.-Japan alliance and U.S.-Japan security arrangements, Japan is also actively participating in the U.S.-led lunar program. The 5th Basic Plan for Space Policy (2023~2033) indicating Japan’s move tow..

從21世紀開始，低敏感性的區域經濟整合已成為目前國際的趨勢。俄羅斯因應區域經濟整合趨勢，從傳統主導安全性區域整合改採以更有地緣政治優勢的能源戰略，來促進其建立在新「歐亞主義」的「歐亞經濟聯盟」。本文以地緣政治之能源戰略視角，檢視俄羅斯對前蘇聯國家的地緣政治與能源紛爭，並以交易成本經濟模型作為綜合型架構。本文認為國家作為一個理性行為者，俄羅斯運用地緣政治能源戰略降低交易成本。最後本文以交易成本變項來進一步分析前蘇聯國家與俄羅斯之議價能力。

In the 21st century, regional economic integration as a less sensitive issue has become the current international trend. In response to the trend of regional economic integration, Russia has changed from traditionally dominated thought of security regional integration to a more geopolitical energy strategy to promote its establishment of the “Eurasian Economic Union” based on the new “Eurasianism.” From the perspective of geopolitical-based energy strategy, the article examines Russia’s geopolitical and energy ..