达成协议不到一周，美日分歧已经显现，双方围绕“5500亿美元投资”各说各话

Group 1 - The core viewpoint of the articles highlights the discrepancies in understanding and details surrounding the recently announced US-Japan trade agreement, particularly regarding the $550 billion investment and profit distribution [1][2][3] - Japanese Prime Minister Kishida stated that many details of the tariff agreement remain unclear, and there are no plans for a joint document regarding the agreement [1] - The $550 billion investment is interpreted differently by both parties, with the US claiming it will receive 90% of the profits, while Japan suggests that profit distribution will depend on contributions and risk [1][3] Group 2 - The investment commitment of $550 billion is said to involve equity, loans, and loan guarantees from Japanese government entities, not private sector investments [2] - There is skepticism in the financial community regarding whether the $550 billion investment will materialize, with some experts suggesting it is more of a target than a binding commitment [4] - The negotiations have been characterized by a lack of formal written agreements, leading to confusion and differing interpretations of the terms [4][5] Group 3 - The Japanese government is reportedly willing to provide a significantly lower amount than the $550 billion figure, with actual payments expected to be in the range of "several trillion yen" [5] - The US Treasury Secretary has indicated that compliance with the agreement will be monitored quarterly, with potential tariff increases if expectations are not met [5] - The uncertainty surrounding Japanese corporate investment decisions remains, as the ultimate investment will depend on the actions of private enterprises [5]