Fiscal Policy and Public Debt: Macroeconomic Study Notes

Fiscal Policy and Public Debt

Introduction to Fiscal Policy

Fiscal policy refers to the discretionary changes in government expenditures and/or taxes to achieve national economic goals such as high employment, price stability, economic growth, and improvement of the international payments balance. It is a central tool in macroeconomic management, influencing aggregate demand and overall economic activity.

• Discretionary Fiscal Policy: Deliberate changes in government spending or taxation to influence economic outcomes.

• Goals: High employment, price stability, economic growth, and improved balance of payments.

Aggregate Demand and Aggregate Supply Model

The aggregate demand (AD) and aggregate supply (AS) model is used to evaluate the effects of fiscal policy on the economy. Fiscal policy can shift the AD curve, impacting real GDP and the price level.

• Expansionary Fiscal Policy: Used to close a recessionary gap by increasing government spending or decreasing taxes, shifting AD to the right.

• Contractionary Fiscal Policy: Used to close an inflationary (expansionary) gap by decreasing government spending or increasing taxes, shifting AD to the left.

Example: If the economy is below full employment, expansionary fiscal policy increases AD, raising real GDP and moving the economy toward full employment.

Example: If the economy is above full employment, contractionary fiscal policy decreases AD, lowering real GDP and moving the economy back to full employment.

Government Budgets and Public Debt

Government budgets reflect the difference between government revenue and spending. The accumulation of deficits over time leads to public debt.

• Budget Balance: Government revenue minus spending.

• Budget Deficit: When government spending exceeds revenue.

• Budget Surplus: When government revenue exceeds spending.

• Debt: The cumulative total of past government borrowing to cover deficits.

• Gross Public Debt: All federal government debt, regardless of ownership.

• Net Public Debt: Gross debt minus the value of government-held financial assets.

Financing the Federal Deficit

To finance a deficit, the government borrows by selling bonds and other securities. Persistent deficits increase the public debt.

Federal Budget Deficits in an Open Economy

Government borrowing can affect the current account balance. Increased borrowing often leads to capital inflows and a current account deficit.

• Current Account Balance: The difference between a country's savings and its investment.

• Example: Canadian current account surpluses and deficits have fluctuated with changes in government borrowing.

Offsets to Fiscal Policy

Several factors can offset the effectiveness of fiscal policy, reducing its impact on aggregate demand and economic output.

Crowding-Out Effect

• Expansionary fiscal policy may raise interest rates, reducing private investment and consumption.

• This effect can partially or fully offset the initial increase in aggregate demand.

Net Export Effect

• Deficit spending increases interest rates, attracting foreign capital and raising the domestic currency's value.

• A stronger currency makes exports more expensive and imports cheaper, reducing net exports.

Combined Government Spending Effect

• Local and provincial governments may not be able to finance deficits, leading to pro-cyclical spending that offsets federal fiscal policy.

Supply-Side Economics

• Policies that create incentives for productivity can shift the aggregate supply curve to the right, promoting long-term growth.

Ricardian Equivalence Theorem

• Suggests that an increase in the government budget deficit has no effect on aggregate demand because individuals anticipate future tax liabilities and increase savings accordingly.

Fiscal Policy Time Lags

Time lags complicate the use of fiscal policy to eliminate GDP gaps. There are three main types of lags:

• Recognition Lag: Time needed to identify an economic problem.

• Action Lag: Time between recognizing a problem and implementing policy (longer for fiscal policy due to legislative processes).

• Effect Lag: Time between policy implementation and its impact on the economy.

Automatic Stabilizers

Automatic stabilizers are government spending and taxation mechanisms that automatically adjust with economic conditions, helping to stabilize the economy without new government action.

• Examples: Progressive income taxes and employment insurance.

• These mechanisms help drive the economy back toward full employment by increasing government transfers or reducing tax revenues during downturns, and vice versa during expansions.

Summary Table: Fiscal Policy Tools and Effects

Policy Tool	Short-Run Effect	Potential Offset
Increase Government Spending	Increases AD, raises GDP and price level	Crowding-out, net export effect
Decrease Government Spending	Decreases AD, lowers GDP and price level	Supply-side effects
Tax Cuts	Increases disposable income, raises AD	Ricardian equivalence
Automatic Stabilizers	Moderate economic fluctuations automatically	None (built-in response)

Key Equations

• Budget Balance: $\text{Budget Balance} = \text{Government Revenue} - \text{Government Spending}$

• Public Debt: $\text{Public Debt}_{t} = \text{Public Debt}_{t-1} + \text{Budget Deficit}_{t}$

Additional info: These notes synthesize the main concepts from the provided slides, expanding on definitions, mechanisms, and effects relevant to macroeconomic fiscal policy and public debt. The included images directly support the explanation of fiscal policy mechanisms and their macroeconomic impacts.