BlockBeats News, April 4th - Federal Reserve Chairman Powell said in a keynote speech on the economic outlook: Potential tariffs could have a lasting impact on inflation. The Fed is prepared to wait and consider adjustments. It must ensure that price increases do not lead to sustained inflation. The impact of tariffs on the economy may be greater than expected. The Fed has an obligation to maintain stable inflation expectations. Tariffs could raise inflation in the coming quarters; a lasting impact is also possible. (FX678)