高盛经济学家：预计美国基准“对等”关税税率将从10%上升至15%，其中铜和关键矿产的关税将高达50%，此举可能引发通胀并拖累经济增长。

Group 1 - The core viewpoint is that Goldman Sachs economists predict the U.S. benchmark "reciprocal" tariff rate will increase from 10% to 15% [1] - Tariffs on copper and critical minerals are expected to reach as high as 50% [1] - This increase in tariffs may lead to inflation and hinder economic growth [1]