Explain Friedman's arguments for limiting the power of the Fed to manipulate the money supply.

Friedman's arguments restes on three features:
1. The Fed cannot control the money supply well.
2. The effect of changes in the money supply have long and variable lags, with uncertain magnitudes
3. The Fed is not very good at forecasting.
4. Changes in the money supply have large impacts on the economy.
Consequently, the Fed frequently gets the timing and magnitude of its policy interventions wrong, and destabilizes the economy more often than it stabilizes it. Friedman argued that the Fed should be stopped from doing this.