An article in the Economist noted that the ability of the Fed and other central banks to affect long-term interest rates depended on "the central bank's promises about the future path of short-term interest rates." Use the expectations theory to analyze this statement. This statement under the expectations theory since under this theory the interest rate on a long-term bond is Therefore, long-term interest rates impacted by the Fed if investors believe they will keep their promises on future short-term rates