美国围绕关税的博弈近来迎来密集进展。先是美国最高法院公布关税诉讼案裁决结果，判定华盛顿依据 《国际紧急经济权力法》（IEEPA）对相关贸易伙伴加征的所谓"对等关税"、芬太尼关税等相关关税违 法。裁决公布当天，总统特朗普宣布对来自所有国家和地区的商品加征10%的关税；不到24小时后，该 税率又被上调至15％。这一系列操作的背后，是美国发动关税战法律依据的切换，体现了美国国内权力 博弈的白热化，也让全球贸易面临更严峻的无序冲击。 华盛顿发动这轮关税战，最初依据的是《国际紧急经济权力法》。这部法案颁布于1977年，原本的立法 初衷是为了让总统在应对国家安全威胁、恐怖主义或国际金融危机等突发事件时，有权冻结外国资产、 限制资本流动、规范进出口贸易活动。换句话说，IEEPA是"应急工具"，并非"贸易武器"。它的条文甚 至没有提到"关税"（tariff）或"税收"（taxation）的字眼，此前历任总统也从未依据此法征收过关税。 然而，2025年4月2日，美国总统依据IEEPA对世界上的大部分国家征收惩罚性关税。这一操作在美国历 史上属首次。正因如此，自去年年初起，至少有十几家受关税战严重冲击的美国企业联合提起诉讼，认 ...

美方最高司法机构近日作出重大裁决，判定美高层此前依据相关法律征收的部分激进关税违法。大法官们以6比3的投票结果裁定，美高层试图引用1977年的 《国际紧急经济权力法》单方面对全球进入该国的商品征收高额关税，这种做法并不在法律授权范围之内。首席大法官在意见书中指出，美高层声称拥有一 种非同寻常的权力，可以不受限制地设定关税金额、期限和范围，但并未能指出任何法律依据证明该法案条款适用于此类关税征收，这一裁决被视为美高层 自开启新任期以来遭遇的一次罕见挫败。 此次裁决主要针对两类特定关税措施：一类是针对不同地区征收的差异化"对等关税"，另一类是针对周边及相关贸易伙伴部分商品征收的惩罚性关税。虽然 依据其他法律征收的钢铁和铝产品关税目前依然有效，但最高司法机构的定调无疑削弱了美高层在贸易政策上的行政自由度。尽管内部保守派大法官中存在 分歧，但最终裁定结果明确了总统在经济紧急状态下的权力边界，叫停了其试图绕过立法机构直接行使征税权的行为。 这一法律裁决在当地政坛引发剧烈震荡，尤其是在中期选举临近的关键时刻。外界分析认为，虽然裁决在短期内难以彻底扭转既定的贸易保护主义走向，但 其传递出的政治信号不容忽视。 对于一直倡导激 ...

Core Viewpoint - The development of the private economy and the improvement of the business environment may remain mere slogans, and rebuilding confidence in the private economy is a challenging task that requires strict adherence to power boundaries and robust protection of property rights [1][5]. Group 1: Regulatory Measures - The market regulatory departments of Jiangsu, Zhejiang, Shanghai, and Anhui have jointly issued "Eight Measures to Strictly Regulate Cross-Regional Law Enforcement in the Yangtze River Delta," marking the first regional collaborative mechanism targeting "ocean fishing" style law enforcement [2]. - The "Eight Measures" aim to address the long-standing issue of cross-regional law enforcement that harms the private economy and disrupts the business environment, particularly in economically developed areas [2][3]. - The measures include clarifying the concept of cross-regional law enforcement, standardizing case collaboration procedures, and emphasizing the need for prior notification and accompaniment during enforcement actions [3]. Group 2: Legal Framework and Enforcement - The "Private Economy Promotion Law," effective from May 20, 2024, emphasizes the protection of private enterprises and prohibits illegal administrative or criminal interventions in economic disputes [3]. - Central policies have been reinforced by the "Eight Measures," which require careful use of administrative coercive measures and unified administrative penalty discretion to optimize the business environment [3][4]. - The measures also establish a case consultation system to resolve jurisdictional disputes through negotiation and enhance supervision of cross-regional law enforcement to prevent excessive or insufficient penalties [3][4]. Group 3: Underlying Issues - The tendency for profit-driven law enforcement is closely linked to the financial pressures faced by certain regions, particularly economically underdeveloped areas, where reliance on penalty income is higher [4]. - The phenomenon of "ocean fishing" style law enforcement reflects a disregard for individual rights and the transformation of public power into a tool for local financial gain, undermining the legitimacy of law enforcement [4][5]. - The article warns that if the mindset of profit-driven enforcement is not adequately addressed, the effectiveness of governance measures will be limited, and the goal of fostering the private economy may remain unfulfilled [5].