Fiscal policy uses government spending and taxation to influence economic activity. It aims to achieve full employment and price stability. The government establishes fiscal policy through the annual federal budget. Expansionary fiscal policy stimulates the economy through tax cuts and spending increases, while contractionary policy slows growth via tax hikes and spending cuts. However, fiscal policy faces limitations as its effects are difficult to predict and coordinate. Large, sustained deficits lead to rising national debt levels, which can crowd out private investment and increase interest payments over time.