In this paper, after considering the economic effects of the Tokyo Olympics and the Osaka Expo held in the 1960s, we will also examine the economic effects of TOKYO 2020 and EXPO 2025 (Osaka/Kansai Expo) on the 2020s. Analyzing the status of the 1960s and 2020s by business cycle theory, we see a "super economy" in which the rise of both the Kuznets cycle and the Kondratieff cycle has progressed or they are both in the process of rising. In conclusion, it can be said that the improvement of the business cycle has helped solidify the rising phase of the Japanese economy or is becoming synergistic with the economic effects of the Olympic Games held in Tokyo and the expos held (or to be held) in Osaka.
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