English Summary
The article argues that the U.S.'s use of ad hoc export controls to ban advanced AI models reveals a critically inadequate domestic regulatory framework, lacking comprehensive federal legislation. This action demonstrates the government's capacity to control critical technological chokepoints but highlights policy volatility and uncertainty for private industry. Strategically, this dynamic accelerates global fragmentation, forcing international partners to choose between U.S.-controlled tech stacks or less developed alternatives, including those from China. Failure to establish clear governance risks slowing productivity growth and undermining the U.S.'s objective of defining the global AI architecture.
中文摘要
本文論述美國利用臨時性的出口管制（ad hoc export controls）來禁令先進AI模型，暴露出其國內監管框架存在嚴重不足，缺乏全面的聯邦立法。此舉雖展現了政府控制關鍵技術瓶頸的能力，但也突顯了政策的波動性和對私營產業的不確定性。從戰略角度來看，這種動態加速了全球碎片化，迫使國際夥伴在美國主導的科技堆棧或另類（包括來自中國）的發展方案之間做出選擇。若無法建立清晰的治理機制，不僅可能減緩生產力增長，也將損害美國定義全球AI架構的目標。
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