as the maturity 37. In a healthy economic environment, interest rates are increases. A. lower B. higher C. equal D. neutral 38. During "Operation Twist", the federal reserve: A. sold short-term treasuries and sold long-term treasuries B. bought short-term treasuries and sold long-term treasuries C. bought short-term treasuries and bought long-term treasures D. sold short-term treasuries and bought long-term treasures 39. The time between when an economic problem arises and the time it is acknowledged is known as the: A. impact lag B. implementation lag C. recognition lag D. political lag 40. The time between when an economic problem is acknowledged and the Fed implements a policy to resolve the problem is known as the: A. impact lag B. implementation lag C. recognition lag D. political lag