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Openai/693444d9-c740-800a-86c3-4f51b26be63e
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=== 結論(摘要) === * 人口趨勢強化但並非決定性因素:人口結構(年輕化或老化、勞動力多寡)會顯著改變各國的經濟與安全能力,進而影響政策選擇與衝突風險,但不會單獨決定是否開戰。cbo.gov<ref>{{cite web|title=cbo.gov|url=https://www.cbo.gov/publication/61164|publisher=cbo.gov|access-date=2025-12-06}}</ref> * 短中期(5 年內)全面開戰機率仍被多數專家視為較低,但局部摩擦、軍事挑釁與意外升級風險提升(例如飛越或船艦對峙、封鎖與有限軍事行動)。阻止全面入侵的障礙包括高成本、核威懾、經濟相互依存與國際反應等。Stimson Center<ref>{{cite web|title=Stimson Center|url=https://www.stimson.org/2025/rethinking-the-threat-why-china-is-unlikely-to-invade-taiwan/|publisher=Stimson Center|access-date=2025-12-06}}</ref> * 人口壓力會改變各方的動機與時間表:中(人口走弱)可能更重視短期「政權合法性」、經濟成長與科技優勢,日、台的超高齡化會推動更多對外依賴(外交、科技合作、盟友關係),美國藉移民與較穩健的人口結構保有長期軍工與創新優勢。Reuters<ref>{{cite web|title=Reuters|url=https://www.reuters.com/world/china/chinas-population-falls-third-consecutive-year-2025-01-17/|publisher=reuters.com|access-date=2025-12-06}}</ref>
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