Federal Reserve Chairperson Jerome Powell said he was concerned about the rise in U.S. Treasury yields, which are far from their previous levels. It is too early to determine the specific direction of the country's yields. He also said that bond interest rates reflect economic growth expectations; volatility in the bond market does not appear to be mainly influenced by rising expected inflation. Powell said that since the September meeting, the main economic activity data has been stronger; some downside risks to the economy have weakened.