Money neutrality implies that changes in the money supply have an impact on

When the Fed buys federal government securities on the open market from commercial banks, then, over time, the:

a. assets of these banks fall. b. assets of the banks stay the same. c. assets of the banks rise. d. liabilities of the bank rise. e. liabilities of the bank fall.

Who would be more likely to study the inflation rate in the United States, a macroeconomist or a microeconomist?