Fiscal Policy Notes

Fiscal Policy

  • Fiscal policy involves government decisions on taxation and spending, influencing aggregate demand (AD).
  • Expansionary policy: increased spending or lower taxes, shifting AD right, increasing output and prices.
  • Contractionary policy: decreased spending or higher taxes, shifting AD left, decreasing output and prices.

Policy Response to Economic Fluctuations

  • Fiscal policy smooths economic fluctuations; intervention occurs as automatic correction can be slow.
  • Expansionary policy counters decreases in AD.
  • Contractionary policy counters increases in AD in an overheating economy.

Time Lags

  • Time lags (information, formulation, implementation) can make fiscal policy ineffective or counterproductive.

Policy Tools: Discretionary & Automatic

  • Automatic stabilizers: Taxes and government spending that automatically adjust to economic changes.
  • Progressive tax systems and programs like unemployment insurance act as automatic stabilizers.
  • Discretionary fiscal policy involves adjusting tax rates and government spending in response to economic conditions but can be limited by lags.

Limits of Fiscal Policy

  • Tax cuts may require government borrowing, potentially offset by future tax increases (Ricardian equivalence).

The Multiplier Model

  • The multiplier measures the effect of government spending or tax cuts on national income. The multiplier effect amplifies the initial policy impact.
  • Marginal Propensity to Consume (MPC): The fraction of an additional dollar of income that is spent.

Multiplier Effect of Government Spending

  • Government Spending Multiplier = 11−MPC\frac{1}{1 - MPC}

Multiplier Effect of Government Transfers & Taxes

  • Taxation Multiplier = −MPC1−MPC\frac{-MPC}{1 - MPC}
  • Tax cuts have a smaller impact than government spending.

The Government Budget

  • Budget Deficit: Government spends more than it earns.
  • Budget Surplus: Government earns more than it spends.

The Public Debt

  • Public debt is the total amount of money that a government owes at a point in time.
  • Net public debt: The difference between what the government owes and its assets.

Is Public Debt Good or Bad?

  • Benefits: Flexibility, funds investments for economic growth.
  • Costs: Interest payments, potential credit market distortions.