Fiscal policy is implemented by the government and the monetary policy is decided by the central bank of the country. Both the policies can be expansionary or contractionary. In this article, we will take a look at the combined effects of monetary and fiscal policy on the economy in different scenarios:
Expansionary Fiscal Policy plus Expansionary Monetary Policy
Contractionary Fiscal Policy plus Contractionary Monetary Policy
Expansionary Fiscal Policy plus Contractionary Monetary Policy
This happens during a negative supply shock, i.e., a sudden decrease in supply. The government will follow expansionary policy to increase output, and monetary authorities will follow contractionary policy to reduce inflation, that was induced by shortage of output.
Contractionary Fiscal Policy plus Expansionary Monetary Policy
The following table summarizes the effects of Monetary and Fiscal policy.
| Shift of IS | Shift of LM | Movement in Output | Movement in Interest Rate | |
| Increase in taxes | Left | None | Down | Down |
| Decrease in taxes | Right | None | Up | Up |
| Increase in spending | Right | None | Up | Up |
| Decrease in spending | Left | None | Down | Down |
| Increase in money | None | Down | Up | Down |
| Decrease in money | None | Up | Down | Up |