Answer: Contractionary monetary policy
Explanation:
When the central bank of a nation uses a contractionary monetary by decreasing the money supply then as a result the demand for goods and services decreases and price level in an economy also decreases. So, there is a reduction in the inflation level and we all know that for reducing a certain level of inflation then we have to accept a certain level of unemployment in an economy.
Lower price also affect the production level of the firms as it will be less profitable for them to produce more.