自2018年3月起，美國指責中國涉嫌強迫美國企業進行技術轉移、侵犯智慧財產權、惡意收購美國高科技企業等問題。為了減少對中國的貿易逆差、防止智財權被竊以及不公平審查，自2018年第二季，美國開始多次對中國進口產品加徵關稅。中國也採取相應的報復性關稅回擊，這導致美中經貿關係由摩擦、衝突逐漸激化成貿易戰爭。
　　本論文以2016至2021年臺灣上市(櫃)公司之製造業為研究對象，探討美中貿易戰是否影響存貨管理效率與企業價值之關聯性。實證結果顯示，美中貿易戰前，存貨週轉率與企業價值呈顯著正相關。然而，美中貿易戰後，存貨週轉率與企業價值之正向相關性顯著減弱，即美中貿易戰後，企業存貨的可靠性優先於效率性。

Since March 2018, the United States has accused China of aggressive tactics such as violating intellectual property rights, conducting hostile takeovers of U.S. high-tech businesses, and pressuring U.S. corporations to transfer technology to China. Since the second quarter of 2018, in an effort to reduce the trade imbalance with China, prohibit intellectual property theft, and put an end to unfair review, the United States has regularly imposed duties on imported Chinese products. This sparked a tariff retaliation by China, causing tensions in economic and commercial relations between the two countries to increase to the point of a full-blown trade war. For the period from 2016 through 2021, this research considers the potential impact of the trade war between the United States and China on Taiwanese listed businesses operating in the manufacturing sector. Before the US-China trade war, the empirical evidence demonstrates a favorable correlation between inventory turnover and enterprise value. However, the US-China trade conflict has made inventory reliability a more important factor than efficiency in determining a company's worth.

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