50岁的G7，还能站出来吗？

Core Viewpoint - The article discusses the potential historical significance of the upcoming G7 summit, emphasizing the need for the U.S. to maintain its role in upholding international order despite its declining relative power [1][4]. Group 1: U.S. International Role and Policies - The G7 summit is seen as a critical platform for addressing the U.S.'s departure from international cooperation under Trump's administration, which is characterized by a return to high tariffs reminiscent of the 19th century [2][3]. - Trump's administration is marked by a significant shift towards isolationism, with a focus on unilateral national interests, raising concerns about the future of international collaboration [3][5]. - The historical context of the G7's formation in response to U.S. policies in the 1970s highlights the ongoing struggle to maintain multilateral cooperation amid U.S. challenges [3][5]. Group 2: Economic Context and Implications - The article notes that the G7's share of global economic output has fallen from over 60% in the 1970s to below 30% today, reflecting the rise of countries like China and India [5]. - The potential for G7 to address trade tensions and economic cooperation is underscored, with Canada aiming to avoid past conflicts by focusing on areas of mutual agreement rather than a unified declaration [6]. - The historical reference to the "Kindleberger Trap" illustrates the dangers of a lack of leadership in stabilizing the international economy, which could be exacerbated by current U.S. policies [6].