150余封加税函威胁，同步推进高压谈判，特朗普的策略能否奏效

Core Viewpoint - The article discusses the potential impact of the U.S. government's tariff policies on global trade and the economy, highlighting the ongoing negotiations and the reactions from various countries and economic experts [1][5][9]. Group 1: Tariff Policies and Negotiations - President Trump announced that over 150 countries may face a tariff increase of 10% to 15% if they do not reach favorable trade agreements with the U.S. [1] - The U.S. plans to impose tariffs ranging from 20% to 50% on various trade partners, with specific rates for countries like Japan (25%), Thailand (36%), and Canada (35%) [3][5]. - The European Union has prepared a countermeasure list worth €72 billion, including products like Boeing aircraft and automobiles, in response to the proposed tariffs [5][9]. Group 2: Market Reactions and Economic Indicators - Financial markets showed a muted response to the tariff announcements, with slight increases in major indices such as the Nasdaq and S&P 500 [1]. - Economic data indicates rising inflation, with the Consumer Price Index (CPI) increasing by 2.7% year-on-year in June, suggesting that tariffs are contributing to upward price pressures [8]. - The United Nations Conference on Trade and Development (UNCTAD) warned that the tariff policies could disproportionately impact the least developed countries, predicting a potential 54% decline in exports for these economies [9]. Group 3: Expert Opinions on Negotiation Strategies - Experts suggest that the high-pressure negotiation tactics employed by the Trump administration may backfire, leading to distrust among trade partners and complicating future agreements [6]. - The ongoing uncertainty surrounding trade policies is causing businesses to hesitate in decision-making, which could further suppress international trade [9].