Internet reports that U.S. President Trump has launched a move to impose tariffs on Canada and Mexico. Moody's chief economist Mark Zandi believes that the U.S. economy may fall into stagflation. Recent data reflects that U.S. consumers and business circles are already worried about the economic outlook and reducing spending. The relevant effect will lead to a significant slowdown in the economy. The tariff effect will cause high inflation, so the U.S. economy may fall into stagflation. If true, it will be the first time in 50 years that the United States has fallen into stagflation. The Atlanta Fed's GDPNow model shows that the U.S. economy may contract by 2.8% in the first quarter. If true, it will be the first contraction since the first quarter of 2022. Faced with stagflation, the Federal Reserve may raise interest rates, just as former Federal Reserve Chairman Volcker raised interest rates aggressively in the early 1980s to sacrifice the economy to curb inflation. (Jin Shi)