Answer:
monetary and fiscal policies to counteract even small undesirable movements in economic activity.
Explanation:
Economic fine-tuning is the (usually frequent) use of monetary and fiscal policies to counteract or subvert even small undesirable movements in economic activity.
Monetary policy can be defined as the actions (macroeconomic policies) adopted and undertaken by the central bank of a particular country to control the money supply and interest rates so as to boost or enhance economic growth. The central bank uses monetary policies to manage inflation, economic growth through long-term interest rates and level of unemployment in a country. In order to boost economic growth, monetary policy is used to increase money supply (liquidity) while it is also used to prevent inflation by reducing money supply.
On the other hand, Fiscal policy refers to the use of government expenditures (spending) and revenues (taxation) in order to influence macroeconomic conditions such as Aggregate Demand (AD), inflation, and employment within a country. Fiscal policy is in relation to the Keynesian macroeconomic theory by John Maynard Keynes.