美媒：关税给制造商带来沉重负担 或拖累美经济数年之久

Group 1 - The report warns that trade policies from the Trump administration could lead to a reduction in U.S. manufacturing investment by up to $490 billion by 2029 [1][2] - Trade uncertainty may cause companies to delay investments in new factories, production facilities, and research and development, which could slow innovation and reduce factory jobs [1][2] - The report compares the ambiguity of U.S. tariff policies to the economic challenges faced by the UK post-Brexit, indicating that prolonged trade instability can significantly suppress corporate investment [1] Group 2 - If the U.S. experiences long-term trade instability, manufacturing investment could decrease by 13% annually, resulting in a cumulative loss of approximately $490 billion by 2029 [2] - Even if trade concerns are resolved immediately, the damage already inflicted on the industry will persist, with a potential average annual investment reduction of 1% leading to a loss of about $42.2 billion in manufacturing spending by 2029 [2] - Manufacturers are particularly sensitive to policy fluctuations due to the long-term planning and high costs associated with decisions like building factories and purchasing advanced equipment [2]