Key insight: Federal Reserve Chair Kevin Warsh hailed rising market interest rates between Federal Open Market Committee meetings as a positive development. Federal Reserve Chair Kevin Warsh hailed rising market interest rates between Federal Open Market Committee meetings as a positive development. Expert quote: "Market participants are learning to play the ball, not the referee, and market prices will continue to respond in the direction and magnitude they see fit. — Federal Reserve Chair Kevin Warsh Forward look: Warsh's comments suggest he will be steadfast in his commitment to limited communication, even if it creates volatility in markets. WASHINGTON — Federal Reserve Chair Kevin Warsh said his limited approach to communication might have contributed to record jumps in Treasury yields since the Fed's June monetary policy meeting.