Suppose you are the head of the central bank and your mandate is to maintain the price level at a constant value. Explain what you would do to the money supply in response to each of the following events: (a) Real GDP increases by 4% during a boom. (b) Real GDP declines by 1% during a recession. (c) Real GDP is growing at 3% per year. (d) The velocity of money increases by 2%. (e) The velocity of money declines by 1%. Jones, Charles I.. Macroeconomics (Fourth Edition) (p. 228). W. W. Norton