Answer:
Control of money supply
Explanation:
The federal reserve control system is a prerogative of the Federal Reserve, which controls US monetary policy. Monetary policy consists of raising / lowering the interest rate and increasing / decreasing the money supply. When the economy is in recession, monetary policy is expansionary, so the Federal Reserve uses reserves to inject money into the economy. On the contrary, in inflationary situations, the Fed uses a contractionary monetary policy, which consists of withdrawing outstanding currency from the economy. This is done by buying / selling public titles.
