美国单边贸易政策加剧自身经济压力

Core Insights - The Kiel Institute for the World Economy's report indicates that the majority of the costs from the U.S. tariffs are borne by American importers, businesses, and consumers, contradicting the U.S. government's claim that "tariffs are paid by foreigners" [1][5][6] Group 1: Tariff Cost Distribution - The analysis of approximately $4 trillion in goods transport data from 2024 to 2025 reveals that foreign exporters only bear about 4% of the tariff burden, while a staggering 96% of the costs are absorbed by U.S. buyers [1][2] - This suggests that U.S. tariffs function more like an "internal tax" rather than an effective tool for negotiating lower foreign export prices [1][2] Group 2: Economic Implications - The accumulation of tariff costs has led to increased inflationary pressures in the U.S., with customs tariff revenues rising by approximately $200 billion since the current administration's tariff imposition, effectively extracting the same amount from U.S. businesses and households [3] - This "invisible tax" manifests through rising prices of everyday goods, impacting consumer purchasing power and potentially stifling economic growth [3] Group 3: Supply Chain and Structural Issues - The U.S. tariff policy has exacerbated structural frictions and efficiency losses within supply chains, prompting businesses to adopt strategies like "pre-importing" and inventory accumulation, which may inflate import data without improving actual demand [4] - The uncertainty surrounding tariffs is becoming a more destructive factor than the tariffs themselves, complicating long-term investment and supply chain decisions for businesses [4] Group 4: Negotiation and Policy Credibility - The internalization of tariff costs undermines the effectiveness of tariffs as a negotiation tool, as they do not significantly lower foreign export prices but instead increase domestic costs [5] - The disparity between the U.S. government's narrative and the economic reality of who bears the tariff burden could lead to greater domestic political and economic controversy [6]