[Federal Reserve's Bostic: Inflation remains one of the main challenges facing the U.S. economy] Federal Reserve's Bostic stated that high-end consumers have continued spending, and the U.S. economy has remained resilient; in many ways, the U.S. has long experienced a K-shaped economy. He also mentioned that inflation remains one of the main challenges facing the U.S. economy, and controlling inflation is very important; inflation is far above the 2% target and requires 'focused efforts' to bring it down. There is a certain tension between the Federal Reserve's responsibilities and its inflation target. The labor market has cooled down, but it is unclear whether it has fundamentally weakened.