having no idea with economicsy stuff - ill have a go anyway
here's what i found from google
The basic idea of the macroeconomic policy is to use the fiscal and monetary policy to achieve an output gap that is neither so high that it leads to excessive unemployment and lost output nor too low that it leads to rising inflation. However, this is not nearly as simple as it sounds.
Fiscal policy refers to government policy that attempts to influence the direction of the economy through changes in government spending or taxes.
Monetary policy is the process by which the
government,
central bank, or monetary authority manages the
supply of
money, or trading in
foreign exchange markets.
[1] Monetary theory provides insight into how to craft optimal monetary policy.
Hope that helps - probably not cause I'll I did was take it from wikipedia an other sites. So sorry, for wasting your time. I tried