Fiscal Policy - TCE Economics (Tasmania)
“Explain how the Australian Government uses fiscal policy to influence economic activity and evaluate its strengths and limitations.”
Fiscal policy is the federal government's use of taxation and government spending, delivered through the annual budget, to influence aggregate demand and pursue objectives such as growth, low unemployment and price stability.
What this dot point is asking
Fiscal policy is one of the two main demand-management tools, alongside monetary policy. In Australia it is set by the federal government and announced each May in the Budget delivered by the Treasurer. The two levers are government spending (G) and taxation (T), and their net effect shows up in the budget outcome.
Budget outcomes
The budget can be in one of three positions:
- Surplus: revenue is greater than spending. This withdraws money from the economy and is contractionary.
- Deficit: spending is greater than revenue. This injects money and is expansionary.
- Balanced: revenue equals spending.
A deficit must be financed, usually by issuing government bonds, which adds to public (government) debt. The headline figure is the underlying cash balance.
Expansionary and contractionary fiscal policy
Expansionary fiscal policy raises G or cuts T to boost aggregate demand, used during a downturn to lift growth and reduce unemployment. Contractionary fiscal policy cuts G or raises T to slow aggregate demand, used when inflation is high. Aggregate demand is the total spending in the economy:
where C is consumption, I is investment, G is government spending, and (X - M) is net exports.
Government spending (G) and taxation (T). More G or less T is expansionary; less G or more T is contractionary. The net position is shown by the budget outcome.
The multiplier
An initial change in spending leads to a larger final change in national income because the money is re-spent through the economy. This is the multiplier effect. The size depends on the marginal propensity to consume (MPC):
If households spend 80 cents of each extra dollar (MPC of 0.8), the multiplier is 5, so a $1 billion rise in government spending could eventually raise national income by up to $5 billion. Leakages such as saving, taxation and imports reduce the multiplier.
Step 1: Identify the MPC
Suppose households spend 75 cents of each extra dollar of income, so the marginal propensity to consume is . The remaining 25 cents leaks out as saving, tax and imports.
Step 2: Apply the multiplier formula
The simple multiplier is .
Step 3: Apply it to a spending change
A government infrastructure package of $2 billion is the initial injection. Multiplied by 4, it could raise total national income by up to $8 billion.
Step 4: Allow for leakages and crowding out
The full effect is rarely reached: larger leakages (higher saving, tax and imports) lower the real multiplier, and government borrowing may push up interest rates and crowd out some private investment. So $8 billion is an upper bound, not a guaranteed result.
Automatic stabilisers and discretionary policy
Automatic stabilisers work without new decisions: in a boom, progressive income tax collects more and welfare payments fall, cooling demand; in a recession the reverse happens, cushioning the fall. Discretionary policy is the deliberate change of spending or tax in the budget, such as a stimulus package during the COVID-19 downturn. The Australian Government used large discretionary stimulus in 2020, including the JobKeeper wage subsidy and cash payments to households, which pushed the budget into a record deficit to support demand. As the recovery took hold, the stance shifted: the budget returned to surplus in 2022 to 2023 for the first time in 15 years as revenue from high commodity prices and strong employment lifted receipts, illustrating how the stance changes over the cycle.
Strengths and limitations
Fiscal policy is powerful and can be targeted at specific groups, regions or industries, and it can build long-term capacity through infrastructure and education. However it has serious limitations.
Fiscal policy suffers implementation lags because the budget is annual and major projects take years to build, so help can arrive too late. Government borrowing can also push up interest rates and crowd out private investment. Always weigh these limits rather than assuming spending instantly fixes a downturn.
Other constraints include the political difficulty of running surpluses or cutting popular programs, and the build-up of public debt that must eventually be serviced. A strong answer evaluates fiscal policy by balancing its targeting power and capacity-building against lags, debt and crowding out, and by noting how it works alongside monetary policy.
Exam-style questions
Questions in the style of TASC exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.
Practice6 marksExplain the concept of 'fiscal stance'. Distinguish between expansionary and contractionary stance, giving an example in each case.Show worked answer →
Fiscal stance describes the overall effect of the budget on the level of economic activity, judged by how the budget outcome is changing rather than just its level.
Expansionary stance. The government increases spending and/or cuts taxes so that the budget moves toward deficit (or a larger deficit). This raises aggregate demand to stimulate activity, typically used in a downturn. Example: increased infrastructure spending or income-tax cuts during a recession.
Contractionary stance. The government cuts spending and/or raises taxes so that the budget moves toward surplus (or a smaller deficit). This dampens aggregate demand to slow activity and ease inflation, typically used in a boom. Example: reducing government outlays or raising taxes when the economy is overheating.
Note it is the direction of change in the budget balance, not whether it is in deficit or surplus, that signals the stance.
Practice6 marksWhat is an 'automatic stabiliser'? Explain the operation of two (2) automatic stabilisers in slowing economic conditions.Show worked answer →
Definition. Automatic stabilisers are features of the budget that change with the level of economic activity without any new government decision, automatically moderating swings in the business cycle.
Two stabilisers operating as the economy slows (about 3 marks each):
- Progressive income tax. As incomes and employment fall in a slowdown, total tax collected falls automatically and many taxpayers move into lower brackets. Households keep more of their income, cushioning the fall in disposable income and consumption.
- Unemployment and welfare transfers. As unemployment rises in a slowdown, more people qualify for JobSeeker and other benefits, so government transfer payments rise automatically. This supports household incomes and spending.
Together these put a floor under aggregate demand in a downturn (and restrain it in a boom), reducing the size of cyclical fluctuations without discretionary action.