【Goldman Sachs: Expects Trump's Administration to Raise the Base Tariff Rate to 15%】Golden Finance reports that Goldman Sachs' Chief U.S. Economist David Mericle expects the U.S. base 'reciprocal' tariff rate to increase from 10% to 15%, with tariffs on copper and key minerals reaching 50%—this move could exacerbate inflation pressures and suppress economic growth. To reflect the new tariff assumptions and incorporate the impact of import tariffs in the 'initial observations', Goldman Sachs has simultaneously adjusted its forecasts for U.S. inflation and GDP growth. Goldman Sachs has lowered its core inflation forecast for 2025 from 3.4% to 3.3%, raised its forecast for 2026 from 2.6% to 2.7%, and raised its forecast for 2027 from 2.0% to 2.4%. Mericle stated that tariffs are expected to cumulatively push up core prices by 1.7% over 2-3 years. He added that tariffs will reduce GDP growth by 1 percentage point this year, 0.4 percentage points in 2026, and 0.3 percentage points in 2027. Goldman Sachs has correspondingly lowered its GDP growth forecast for 2025 to 1%. (Golden Ten)