美制造业活动连续9个月萎缩 分析师：继续受关税环境拖累

Core Viewpoint - The U.S. manufacturing sector has contracted for nine consecutive months, with the Purchasing Managers' Index (PMI) dropping from 48.7 to 48.2 in November, indicating ongoing economic challenges due to tariff uncertainties and high production costs [1][4]. Group 1: Manufacturing Activity - The U.S. manufacturing PMI has decreased to 48.2, marking the largest contraction in factory activity in four months and the most significant drop in backlog orders in seven months [1][4]. - The manufacturing sector's contribution to the U.S. economy is approximately 10.1%, with only four industries, including computers and electronics, showing growth, while sectors like apparel and textiles are experiencing severe contractions [5]. Group 2: Impact of Tariffs - The uncertainty surrounding tariffs has led to a decline in customer demand, with manufacturers delaying orders until costs are clearer [4][5]. - Since the Trump administration raised tariffs in April, many U.S. manufacturers have faced increased costs for raw materials sourced from abroad, contributing to the overall economic slowdown [4][5]. Group 3: Industry Sentiment - Manufacturers across various sectors, including wood products and chemicals, report low business confidence, with many only accepting short-term orders and lacking plans for inventory expansion [6]. - The electrical equipment and appliance manufacturers have expressed concerns over "trade chaos," while transportation equipment manufacturers are planning long-term changes due to the evolving tariff environment [6].