When is fiscal policy most effective and monetary?

Fiscal policy is most effective during periods of economic downturns or recessions when government spending can stimulate demand and job creation. It is particularly useful when interest rates are at or near zero, limiting the effectiveness of monetary policy. Conversely, monetary policy is most effective in controlling inflation and stabilizing the economy during periods of growth by adjusting interest rates and influencing money supply. Both policies can complement each other but are most impactful when used strategically in response to economic conditions.