12 Economics Unit 3+4

UNIT 3 — INTERNATIONAL ECONOMICS

QCAA Unit 3 covers International Trade and Global Economic Issues. Topic 1 focuses on international trade, exchange rates, trade theories, the balance of payments and foreign investment. Topic 2 focuses on globalisation, protection and trade agreements.

UNIT 3.1 — INTERNATIONAL TRADE

1. Open and closed economies

Syllabus link — Topic 1

Comprehend the concept of an open economy and explain how it operates in terms of the circular flow of income model.

Closed economy

An economy that does not engage with the foreign sector.

Open economy

An economy that engages with the foreign sector through international trade and financial flows.

2. Factor endowment

Syllabus link — Topic 1

Comprehend and describe factor endowment.

Factor endowment

The supply of factors of production available within a country.

These can include:

Land/natural resources
Labour
Capital
Entrepreneurship

3. Absolute advantage

Syllabus link — Topic 1

Comprehend and describe absolute advantage.

Absolute advantage

The ability of a nation to produce a commodity more efficiently than another nation.

Associated with Adam Smith.

Assumptions of PPCs representing absolute advantage

Resources are perfectly mobile.
There are only two countries.
There are only two commodities.
Both countries have equal quantities of resources, but not necessarily equal quality.
If trade takes place, there are no transfer costs.

4. Comparative advantage

Syllabus link — Topic 1

Comprehend and describe comparative advantage and explain the advantages and disadvantages of international trade.

Comparative advantage

The ability of a nation to produce a product at a lower opportunity cost than another nation.

Associated with David Ricardo.

Key distinction

Absolute advantage → efficiency/productivity

Comparative advantage → opportunity cost

5. Competitive advantage

Syllabus link — Topic 1

Comprehend and describe competitive advantage.

Competitive advantage

A trade advantage obtained through the capacity of a nation's industries to innovate and upgrade.

Associated with Michael Porter.

Porter's Diamond

Syllabus link — Topic 1

Comprehend competitive advantage and the factors contributing to it.

1. Factor conditions

A nation must have advantages in factors of production.

These can be created through investment, such as:

Infrastructure
Highly specialised training of the workforce

2. Demand conditions

A nation can benefit from having a clear understanding of consumer demand by developing a strong domestic market.

This can help firms anticipate international market needs.

3. Related and supporting industries

A nation can gain an advantage from having efficient and internationally competitive supplier industries.

4. Firm structure, strategy and rivalry

Conditions governing:

Company creation
Organisation
Management
Domestic rivalry

need to encourage firms to be disciplined, flexible and innovative.

6. Self-sufficiency

Self-sufficiency

The ability of a nation to produce sufficient products to meet its own needs from domestic sources.

⚠ You used this concept twice. It is retained once here and also becomes relevant later when discussing arguments for protection.

7. Exchange rate

Syllabus link — Topic 1

Comprehend and describe exchange rates, including fixed, floating and managed exchange rates, and exchange-rate appreciation and depreciation.

Exchange rate

The value of one country's currency expressed in terms of another country's currency.

🔁 Duplicate removed: You defined exchange rate twice.

8. Law of one price

Syllabus link — Topic 1

Relevant to understanding exchange rates, economic integration and international trade.

Law of one price

Identical goods should have the same price in different markets after adjusting for currency exchange rates and transport costs.

9. Purchasing Power Parity

Syllabus link — Topic 1

Relevant to understanding exchange rates and international economic integration.

Purchasing Power Parity (PPP)

The theory that exchange rates should eventually adjust so that an identical basket of goods and services costs the same in two countries, after accounting for exchange rates.

10. Arbitrage

Syllabus link — Topic 1

Relevant to the law of one price and exchange-rate relationships.

Arbitrage

Making a risk-free profit by buying something where it is cheaper and selling it where it is more expensive.

11. Types of exchange-rate systems

Syllabus link — Topic 1

Comprehend fixed, floating and managed exchange rates.

Fixed exchange rate

The value of a currency is fixed by the government/central bank against another currency or standard, with intervention used to maintain that value.

Floating exchange rate

The value of a currency is determined by the forces of demand and supply in the foreign exchange market.

Managed exchange rate

A floating exchange rate where the government/central bank intervenes to influence the currency's value or keep it within a particular range.

12. Currency appreciation and depreciation

Syllabus link — Topic 1

Comprehend and describe exchange-rate appreciation and depreciation and analyse movements in exchange rates.

Currency appreciation

An increase in the value of a currency relative to other currencies under a floating exchange-rate regime.

Currency depreciation

A decrease in the value of a currency relative to other currencies under a floating exchange-rate regime.

13. Currency revaluation and devaluation

Syllabus link — Topic 1

Comprehend and describe currency revaluation and devaluation.

Currency revaluation

A deliberate upward adjustment in the value of a country's currency under a fixed exchange-rate system.

Currency devaluation

A deliberate downward adjustment in the value of a country's currency under a fixed exchange-rate system.

Critical distinction

Market-driven	Deliberate policy action
Appreciation	Revaluation
Depreciation	Devaluation

14. Money supply

Money supply

The amount of money in circulation at a given time.

⚠ This is in your notes, but it isn't particularly central to the QCAA Topic 1 exchange-rate syllabus point. Keep it as supporting knowledge rather than treating it as a major standalone examinable concept.

15. Demand for the Australian dollar

Syllabus link — Topic 1

Comprehend and explain the factors underlying the demand and supply of the Australian currency.

Demand for AUD can come from:

Exports of goods and services

Foreign buyers need AUD to purchase Australian exports.

Incomes received

Australia receiving income from overseas can create demand for AUD.

Capital inflow

Foreign investment into Australia requires foreign investors to obtain AUD.

Example:

Foreign investment ↑ → demand for AUD ↑

Speculation

People purchase AUD as an investment because they expect its value to increase.

16. Supply of the Australian dollar

Syllabus link — Topic 1

Comprehend and explain the factors underlying the demand and supply of the Australian currency.

Supply of AUD can come from:

Imports of goods and services

Australians need to exchange AUD for foreign currency to purchase imports.

Income payable

Income paid to foreign residents creates a supply of AUD.

Capital outflow

Australian investors moving funds overseas supply AUD in the foreign-exchange market.

Speculation

People may sell AUD if they expect its value to decrease.

Important graph point

When representing supply of AUD:

It does not represent how much Australian currency physically exists.

It represents how willing holders of AUD are to sell/exchange AUD for foreign currency.

17. Balance of Payments

Syllabus link — Topic 1

Comprehend and describe the balance of payments, current account, capital and financial account, balance of trade, current account deficit, foreign investment and foreign debt.

Balance of Payments (BOP)

A record of a nation's payments to and receipts from the rest of the world over a period of time.

It records:

Credits

Payments received by a nation from the rest of the world.

Debits

Payments made by a nation to the rest of the world.

18. Current account

Syllabus link — Topic 1

Comprehend the current account and analyse trends in Australia's balance of payments.

The current account records international transactions involving:

Goods
Services
Primary income
Current/secondary transfers

Balance of trade

The difference between the value of exports and imports.

Balance of Trade=X−M

Trade surplus

X>M

Exports exceed imports.

Trade deficit

X<M

Imports exceed exports.

Net primary income

Income received from foreign investments minus income paid to foreign investors.

Examples:

Interest
Dividends
Investment income

Net current transfers

The movement of funds where there is no reciprocal economic activity.

Examples in your notes include:

Migration
Foreign aid
Insurance payments

19. Capital account

Capital account

A record of:

Capital transfers
Acquisition/disposal of non-produced, non-financial assets

between residents and non-residents.

20. Financial account

Financial account

Tracks transactions involving financial assets and liabilities between economic entities/residents and non-residents.

Direct investment

Transactions involving long-term capital investment in a business, where the investor obtains significant influence/control.

Portfolio investment

The purchase of equity or debt in a business where the investor does not have significant influence over the operation of the business.

Financial derivatives

Contracts whose value is derived from the price of another asset, such as:

Shares
Currency
Commodities

They can be used to manage risk or seek profit.

Reserve assets

Assets controlled by the Reserve Bank that can be used to:

Meet policy objectives
Intervene in the foreign exchange market
Assist the Australian Government in meeting commitments to the IMF

Other investments

Transactions that do not fit into the other financial-account categories.

21. Double-entry accounting

Syllabus link — Topic 1

Relevant to understanding the balance of payments.

Your note says:

Current account minus capital and financial accounts should equal 0.

🔧 CORRECTION:

The basic relationship is:

Current Account + Capital Account + Financial Account=0

in a complete balance-of-payments accounting system, allowing for statistical discrepancies in actual published data.

22. Terms of trade

Syllabus link — Topic 1

Comprehend and describe terms of trade and analyse changes in Australia's terms of trade.

Terms of Trade (TOT)

The ratio of export prices to import prices.

TOT=Index of Import PricesIndex of Export Prices×100

Terms of trade ↑

Export prices rise relative to import prices.

Terms of trade ↓

Import prices rise relative to export prices.

23. Foreign investment

Syllabus link — Topic 1

Comprehend and describe foreign investment and analyse its significance for Australia's economic development.

Direct investment

Long-term foreign investment involving significant influence/control over a business.

Portfolio investment

Foreign purchase of equity/debt without significant influence over the operation of the business.

Value/significance of FDI

Your notes identify five major areas:

Economic growth and employment
Productive capacity
Technological advancement
Foreign exchange access
Market access

Problems/potential costs of FDI

Loss of ownership and control
Increased external debt and servicing costs
Profit repatriation

24. Foreign Investment Review Board

FIRB

The Foreign Investment Review Board was established in 1976 and acts as an advisory body to the Treasurer/Government regarding Australia's foreign investment policy.

Functions

Examine investment proposals.
Provide advice regarding foreign investment policy.
Foster awareness and understanding of foreign investment.

25. Foreign debt

Syllabus link — Topic 1

Comprehend and describe foreign debt and analyse its significance for Australia.

Foreign debt

Debt owed by a nation to the rest of the world/non-residents.

Gross foreign debt

The total amount of Australia's overseas borrowings.

Net foreign debt

Gross foreign debt−Australian lending overseas

In simple terms:

What Australia owes − what Australia is owed

Private foreign debt

Foreign debt owed by the private sector.

Public foreign debt

Foreign debt owed by the government/public sector.

26. Intra-industry trade

Intra-industry trade

When countries trade similar or the same types of goods.

Example:

Australia exports cars while importing cars.

27. Intra-company trade

Intra-company trade

Trade between different affiliates/subsidiaries of the same multinational corporation.

Example:

A parent/subsidiary in one country trades with a subsidiary in another country.

28. Transfer price

Transfer price

The price charged for goods/services transferred between subsidiaries of the same multinational corporation.

29. Efficiency concepts

Syllabus link — Topic 1

Relevant to evaluating the advantages/disadvantages of international trade and its effects on economic efficiency and resource allocation. QCAA explicitly requires evaluation using criteria including economic efficiency and resource allocation.

Technical efficiency

The ability of a firm to produce maximum output from a given quantity of inputs.

Absolute efficiency

Where a country's productive resources are used in a way that generates maximum benefits for consumers and the country.

Dynamic efficiency

The ability of an economy to respond to changing consumer demand by reallocating resources to new industries or production processes.

UNIT 3.2 — GLOBAL ECONOMIC ISSUES

QCAA Topic 2 covers globalisation, methods of protection, the arguments for/against protectionism and trade liberalisation, and international trading agreements.

1. Globalisation

Syllabus link — Topic 2

Describe globalisation and explain/analyse/evaluate factors contributing to globalisation and current international trade patterns.

Globalisation

The growing integration of national economies, forming an increasingly interdependent global economy.

2. Globalisation of markets

Globalisation of markets

The convergence of tastes and preferences across world markets and increasing global acceptance of standardised products.

3. Globalisation of production

Globalisation of production

The dispersal of different phases of production around the world so firms can take advantage of national differences in production efficiency.

4. Multinational corporations

Syllabus link — Topic 2

Explain factors contributing to the growth of multinational supply-chain integration and globalisation, including multinational corporations.

Parent country

The country where an MNC is based/headquartered and from where major decisions are made.

Host country

A country where a company based in another country conducts business activities.

Supply chain

The system of:

Organisations
People
Activities
Information
Resources

involved in moving a product/service from supplier to consumer.

5. Global economic integration

Capital mobility

The ability to move private funds across national borders in pursuit of higher returns.

Global financial system

The globally integrated system of national financial markets and institutions that facilitates cross-border financial transactions.

Transfers

The movement of scientific methods, production techniques or distribution methods from one enterprise, institution or country to another.

Law of one price

A measure of economic integration based on the idea that prices of similar products traded in linked markets should converge toward one price, after appropriate adjustments.

Interdependence

Mutual reliance between countries/entities where actions in one economy can significantly affect other economies.

Trade intensity

A measure of economic integration:

Trade intensity=GDPX+M

where:

X = exports
M = imports

A higher ratio indicates a greater degree of integration with international trade.

6. Factors contributing to globalisation

Core competencies

Characteristics specific to a firm that provide a sustainable competitive advantage.

Risk diversification

Managing business risks by having multiple options, such as:

Multiple suppliers
Multiple markets
Multiple production locations

7. Factors facilitating globalisation

Trade and investment liberalisation

The removal or reduction of restrictions/barriers on the exchange of goods and investment between nations.

Regional trading blocs

Groups of countries, generally within a geographical region, that establish agreements to reduce trade barriers between members.

⚠ Your original wording said they "protect themselves from imports from non-members."

That's too broad. Some forms of regional integration can involve external protection, but the defining feature is reduced barriers between members.

8. Changed development strategies

Emerging market economies

Developing economies undergoing transformation toward a capitalist/market-based economic system and increasing integration into the global economy.

Export-orientation strategies

Strategies designed to encourage the expansion of domestic production for export markets.

Import-substitution strategies

Strategies designed to replace manufactured imports with domestic production, often by protecting infant industries from foreign competition.

Transparency

Laws and regulations that are:

Clearly specified
Promptly enforced
Readily accessible

Double taxation

The taxation of an international firm's profits in the country where they are earned and again in its home country.

9. Non-government institutions

Syllabus link — Topic 2

QCAA specifically identifies the WTO, IMF and World Bank in its discussion of globalisation and international trade patterns.

International Monetary Fund (IMF)

An organisation that promotes global monetary cooperation and financial stability.

World Trade Organisation (WTO)

An intergovernmental organisation that regulates/facilitates international trade.

World Bank

An international financial institution that provides loans and grants to governments of low- and middle-income countries.

10. Free trade

Syllabus link — Topic 2

Describe free trade and trade liberalisation and evaluate them against protectionism.

Free trade

Trade where governments exert relatively little influence through trade barriers, allowing competitive market forces to determine trade patterns.

11. Protection

Syllabus link — Topic 2

Describe methods of trade protection and construct supply and demand diagrams showing their effects.

Protection

A government policy designed to provide domestic producers with an artificial advantage over foreign competitors.

12. Protectionism mechanics

Effective rate of protection

The actual rate/degree of protection provided to an import-competing industry, taking into account protection affecting both the industry's output and inputs.

Consumption effect

The effect of protection on a nation's consumption patterns.

Production effect

The effect of protection on a nation's production patterns.

13. Reasons for protection

Syllabus link — Topic 2

Analyse and evaluate economic arguments for and against protectionism using criteria such as efficiency, growth, living standards and resource allocation.

Infant industries

Industries in their early stages of development that may require temporary protection until they become internationally competitive.

Self-sufficiency

The ability of a country to satisfy its own needs without external assistance, often justified on national-security grounds.

Preventing dumping

Dumping

The sale of a product in a foreign market at an unfairly low price, potentially below production cost, in order to gain market share.

Protection may be used to counteract dumping.

Employment

Protection can protect employment in import-competing domestic industries.

Low foreign wages

Protection may be justified by concerns that domestic industries cannot compete with countries where labour costs are significantly lower.

14. Costs of protection

Inefficient resource allocation

Resources are diverted into industries that may not have a comparative advantage, reducing efficiency.

Wealth redistribution

Protection can redistribute income from consumers to protected domestic producers, because consumers may face higher prices.

International ill-feeling

Protection can create trade tensions and retaliation from trading partners.

Restricted consumer choice

Protection can reduce the:

Variety
Availability
Quality
Affordability

of goods available to consumers.

Lower standard of living

Higher prices, reduced choice and inefficient resource allocation can reduce consumer welfare/living standards.

15. ➕ QCAA GAPS — UNIT 3

These were not in your original notes, but the current 2026 QCAA syllabus explicitly requires them.

➕ Economic integration

QCAA requires students to comprehend economic integration and economic union.

➕ Circular flow of income — open economy

QCAA specifically requires the open economy to be understood through the circular flow of income model.

➕ Trade agreements

QCAA requires:

Bilateral trade agreements
Regional trade agreements
Multilateral trade agreements
Australia's FTAs
Trade creation
Trade diversion

These weren't in your original notes.

➕ Tariffs, quotas, subsidies and bureaucratic requirements

Your notes discuss protection generally, but QCAA specifically requires methods including:

Tariffs
Subsidies
Quotas
Bureaucratic requirements

and their effects using supply-and-demand diagrams.

So these need to be added to your final study set.

UNIT 4 — CONTEMPORARY MACROECONOMICS

QCAA Unit 4 focuses on Australia's macroeconomic objectives, the economic cycle, economic indicators, aggregate demand/supply and economic policy.

UNIT 4.1 — MACROECONOMIC OBJECTIVES AND THEORY

1. GDP

Syllabus link — Topic 1

Distinguish nominal and real GDP and use calculations to identify change and scale.

Gross Domestic Product (GDP)

The total value of final goods and services produced within a country's borders over a given period.

Three approaches to GDP

Output approach

Measures GDP through the value of production/output.

Income approach

GDP=Rent+Interest+Wages+Profit

Expenditure approach

GDP=C+I+G+(X−M)

where:

C = consumption
I = investment
G = government expenditure
X = exports
M = imports

2. Nominal and real GDP

Nominal GDP

GDP measured using current prices, without adjusting for inflation.

Real GDP

GDP adjusted for changes in the price level/inflation.

Key idea

Nominal GDP can increase because:

Actual output increased
Prices increased
Or both

Real GDP is used to identify changes in actual output.

3. Aggregate Demand

Syllabus link — Topic 1

Comprehend the circular flow model and components of aggregate demand, and apply the AD/AS model.

Aggregate Demand (AD)

The total quantity of goods and services that households, businesses, government and the foreign sector are willing and able to purchase at different price levels.

AD=C+I+G+(X−M)

4. Aggregate Supply

Aggregate Supply (AS)

The total level of goods and services firms are willing and able to produce at different price levels.

Short-run aggregate supply

The relationship between the price level and real output supplied in the short run.

Long-run aggregate supply

Represents the economy's productive capacity.

5. Keynesian aggregate supply

At low levels of output, the economy has significant spare capacity, allowing output to increase without substantial price pressure.

As the economy approaches capacity:

Output becomes increasingly difficult to increase → price pressures rise

At full capacity:

Further AD increases mainly create higher prices rather than higher real output.

6. Movements vs shifts

Movement along AD/AS

Caused by a change in the general price level.

Shift in AD

Caused by a change in a non-price determinant of aggregate demand.

Shift in AS

Caused by a change in a determinant of aggregate supply.

7. Equilibrium

AD/AS equilibrium

The point where:

AD=AS

This determines the economy's:

General price level
Equilibrium real output

⚠ Important: Equilibrium does not necessarily mean full employment.

8. Economic cycle

Syllabus link — Topic 1

Explain the four phases of the economic cycle in the context of macroeconomic objectives.

The four phases are:

Expansion
Peak
Contraction
Trough

9. Macroeconomic objectives

Syllabus link — Topic 1

QCAA identifies the following objectives: sustainable economic growth, full employment, price stability, external stability, sustainable development and improved living standards.

Sustainable economic growth

An increase in real output over time that can be maintained without creating significant economic or environmental problems.

Full employment

A situation where the economy has no cyclical unemployment, although some natural unemployment can remain.

Price stability

Maintaining a low and stable rate of inflation.

External stability

Maintaining a sustainable international economic position, including Australia's balance of payments and external liabilities.

Sustainable development

Economic development that meets present needs while maintaining the ability of future generations to meet their needs.

Improved living standards

An improvement in people's material and broader economic wellbeing.

10. Inflation

Syllabus link — Topic 1

Comprehend and explain inflation, including headline, underlying, demand-pull, cost-push, imported inflation and inflation expectations.

Inflation

A sustained increase in the general price level over time.

Deflation

A sustained decrease in the general price level.

Disinflation

A fall in the rate of inflation, while prices are still increasing.

Example:

6%→4%→2%

Prices are still rising, but more slowly.

11. Types of inflation

Demand-pull inflation

Caused by excessive aggregate demand.

AD↑→Price Level↑

Cost-push inflation

Caused by increases in production costs, shifting AS left.

Imported inflation

Inflation caused by increases in the prices of imported goods/services, potentially through:

Currency depreciation
Higher international prices

Inflation expectations

The expectations households, businesses and workers have about future inflation.

These expectations can influence:

Wage demands
Pricing decisions
Consumption
Investment

Stagflation

A combination of:

High inflation + weak economic activity + high unemployment

12. CPI

Consumer Price Index (CPI)

A measure of changes in the prices of a basket of goods and services consumed by households.

Basic process

Establish a representative basket.
Collect prices.
Assign expenditure weights.
Compare prices against a base period.
Calculate the change in the index.

13. Headline and underlying inflation

Headline inflation

The inflation rate measured using the CPI.

Underlying inflation

A measure designed to remove the effects of temporary/volatile price movements to provide a clearer indication of underlying inflationary pressure.

14. Unemployment

Syllabus link — Topic 1

Comprehend and explain unemployment, including cyclical, structural, frictional, seasonal, natural, hidden, long-term and underemployment.

Unemployment

A person is unemployed when they:

Do not have a job
Are actively seeking work
Are available to work

Unemployment rate

Unemployment rate=Labour forceUnemployed×100

15. Labour force

The labour force consists of:

Employed + Unemployed

16. Participation rate

Syllabus link — Topic 1

Comprehend participation rate and calculate it.

Participation rate=Working-age populationLabour force×100

17. Labour underutilisation

Labour underutilisation

Unused or insufficiently utilised labour resources, particularly:

Unemployment
Underemployment

Underemployment

People who are employed but want to work more hours.

🔧 Correction: Your original note said underemployment could involve being "overqualified". That is not the key QCAA definition. Focus on insufficient hours relative to desired hours.

18. Types of unemployment

Frictional unemployment

Temporary unemployment caused by the time taken to move between jobs.

Structural unemployment

Unemployment caused by changes in the structure of the economy, resulting in a mismatch between workers' skills/location and available jobs.

Cyclical unemployment

Unemployment caused by downturns in economic activity.

Seasonal unemployment

Unemployment resulting from seasonal variations in demand for labour.

Natural unemployment

The unemployment that exists when the economy is operating without cyclical unemployment.

Generally:

Natural unemployment = frictional + structural

Hidden unemployment

People who want employment but are not counted as unemployed, such as discouraged job seekers.

Long-term unemployment

Unemployment lasting for an extended period of time.

19. NAIRU

Syllabus link — Topic 1

Comprehend and describe the non-accelerating inflation rate of unemployment.

NAIRU

Non-Accelerating Inflation Rate of Unemployment.

The unemployment rate consistent with stable inflationary pressure.

🔧 Correction: Your original notes used NAIRV. The correct term is NAIRU.

20. Phillips Curve

Syllabus link — Topic 2

Analyse and evaluate the relationship between the economic cycle and economic objectives, including the short- and long-run Phillips Curve.

Phillips Curve

Shows the relationship between inflation and unemployment.

Short run

There can be an inverse relationship:

Unemployment ↓ → inflationary pressure ↑

Long run

The long-run Phillips Curve is generally represented as vertical at the NAIRU.

Therefore there is no permanent trade-off between inflation and unemployment.

21. Demand shocks

Demand shock

A sudden change in aggregate demand.

Expansionary demand shock

AD↑

→ Real GDP ↑
→ Unemployment ↓
→ Price level/inflationary pressure ↑

Deflationary demand shock

AD↓

→ Real GDP ↓
→ Unemployment ↑
→ Inflationary pressure ↓

🔧 Correction: Your original notes had these relationships reversed.

22. Supply shocks

Positive supply shock

AS↑

→ Real GDP ↑
→ Price level ↓
→ Unemployment ↓

Negative supply shock

AS↓

→ Real GDP ↓
→ Price level ↑
→ Unemployment ↑

23. Multiplier effect

Syllabus link — Topic 1

Comprehend and explain the multiplier effect and calculate the simple Keynesian multiplier using MPC and MPS.

Multiplier effect

The more-than-proportional change in final income/output resulting from an initial change in autonomous expenditure.

Autonomous expenditure

Expenditure that is independent of the current level of national income.

Marginal Propensity to Consume

MPC

The proportion of each additional dollar of income that is spent on consumption.

MPC=ΔYΔC

Marginal Propensity to Save

MPS

The proportion of each additional dollar of income that is saved.

MPS=ΔYΔS

And:

MPC+MPS=1

Simple Keynesian multiplier

k=1−MPC1

or:

k=MPS1

24. Deflationary and inflationary gaps

Deflationary gap

The amount by which equilibrium output is below the full-employment level.

Inflationary gap

The amount by which equilibrium output is above the full-employment level.

UNIT 4.2 — ECONOMIC INDICATORS AND PAST BUDGET STANCES

QCAA requires students to classify indicators as leading, lagging or coincident, calculate economic data and use past indicators to assess Australia's position in the economic cycle.

1. Economic indicators

Economic indicator

A statistic/measure that provides information about the condition or performance of the economy.

2. Leading indicators

Indicators that tend to change before broader economic activity changes.

Examples from your notes can be retained where relevant.

3. Coincident indicators

Indicators that change at approximately the same time as overall economic activity.

4. Lagging indicators

Indicators that tend to change after broader economic activity changes.

5. Composite indicators

A measure/index constructed using multiple economic indicators.

⚠ This is useful supporting knowledge, but QCAA specifically names leading, lagging and coincident indicators.

6. Capital productivity

Capital productivity

The relationship between capital inputs and output, measuring how effectively capital is used to produce output.

7. Labour productivity

Labour productivity

The amount of output produced per unit of labour input, commonly measured as output per hour worked.

8. Government's economic roles

Syllabus link — Topic 3

Relevant to understanding government economic management.

Allocation role

Government influences how resources are allocated through:

Legislation
Taxation
Government expenditure

Distribution role

Government can:

Increase individuals' income-earning capacity.
Redistribute income.

Stabilisation role

Government uses economic policies to influence:

Economic growth
Employment
Inflation
Stability

9. Federal budget

Budget

A statement of the government's planned revenue and expenditure.

Budget surplus

Revenue>Expenditure

Budget deficit

Expenditure>Revenue

Balanced budget

Revenue=Expenditure

10. Government revenue

Direct taxation

Tax imposed directly on income/wealth, where the legal burden generally cannot be shifted.

Example:

Personal income tax

Indirect taxation

Tax imposed on goods, services or transactions, where the economic burden can potentially be passed on through prices.

Example:

GST

11. Types of taxation

Proportional tax

The tax rate remains constant as income changes.

Progressive tax

The proportion of income paid in tax increases as income increases.

Regressive tax

The proportion of income paid in tax decreases as income increases.

12. Government expenditure

Current expenditure

Government spending associated with current goods/services and ongoing government operations.

Capital expenditure

Government spending on capital assets/infrastructure that provide benefits over time.

Transfer payments

Government payments where the recipient does not provide a current good or service in return.

Examples:

Welfare payments
Some pensions
Unemployment benefits

🔧 Correction: Your original notes had overlapping/incorrect definitions for these three categories. They are distinct.

13. Equity, efficiency and simplicity in taxation

Equity

The tax system should be fair.

A common principle:

Those with a greater capacity to pay should contribute more.

Efficiency

The tax system should minimise distortions to:

Work
Saving
Investment
Consumption
Production
Resource allocation

Simplicity

The tax system should make clear:

What is taxed
Who pays
How much
When
How it is paid

UNIT 4.3 — ECONOMIC MANAGEMENT

QCAA Topic 3 is divided into:

Sub-topic A: Fiscal policy
Sub-topic B: Monetary policy
Sub-topic C: Supply-side and microeconomic policies

QCAA explicitly requires analysis/evaluation of the effectiveness of policy responses.

A. FISCAL POLICY

1. Fiscal policy

Syllabus link — Topic 3

Comprehend, explain, analyse and evaluate fiscal policy and its effectiveness in achieving Australia's economic objectives.

Fiscal policy

Government decisions regarding taxation and expenditure used to influence economic activity and achieve macroeconomic objectives.

2. Expansionary fiscal policy

Expansionary fiscal policy

A fiscal stance designed to increase aggregate demand.

Typically:

G↑

and/or

T↓

Therefore:

AD↑

3. Contractionary fiscal policy

Contractionary fiscal policy

A fiscal stance designed to decrease aggregate demand.

Typically:

G↓

and/or

T↑

Therefore:

AD↓

4. Automatic stabilisers

Syllabus link — Topic 1

QCAA specifically requires the role of automatic stabilisers in influencing AD and stabilising the economic cycle.

Automatic stabilisers

Fiscal mechanisms that automatically change government revenue/expenditure as economic conditions change, helping to stabilise the economic cycle without a new discretionary policy decision.

5. Discretionary spending

Discretionary fiscal policy

Deliberate government decisions to change expenditure and/or taxation to influence AD and economic activity.

B. MONETARY POLICY

1. Reserve Bank of Australia

Syllabus link — Topic 3

QCAA requires understanding of the RBA's monetary-policy role and objectives.

The RBA:

Implements monetary policy
Monitors financial markets
Supports financial stability
Manages Australia's foreign reserves
Provides banking services to the Australian Government and other institutions
Supports the payments system

2. Cash rate

Cash rate

The interest rate on overnight loans in the interbank money market.

The RBA changes the cash rate to influence broader interest rates and economic activity.

3. Monetary policy easing

Monetary policy easing

A reduction in the cash rate designed to stimulate economic activity.

Cash rate↓

→ borrowing costs ↓
→ consumption/investment ↑
→ AD ↑
→ economic activity ↑

4. Monetary policy tightening

Monetary policy tightening

An increase in the cash rate designed to reduce excessive economic activity/inflationary pressure.

Cash rate↑

→ borrowing costs ↑
→ consumption/investment ↓
→ AD ↓
→ inflationary pressure ↓

5. Inflation targeting

Syllabus link — Topic 3

Comprehend, explain, analyse and evaluate inflation targeting and the significance of monetary policy on economic activity.

Inflation targeting

A monetary policy framework in which the central bank aims to maintain inflation around a specified target over time.

For Australia:

2−3% inflation, on average over time

Purpose

The target acts as a nominal anchor for inflation expectations.

This helps households and businesses form expectations about future inflation, which can assist decisions about:

Wages
Prices
Consumption
Saving
Investment

6. Monetary policy transmission mechanism

Syllabus link — Topic 3

Comprehend, explain, analyse and evaluate the transmission mechanism and channels of monetary policy and their influence on AD.

Transmission mechanism

The process through which a change in the cash rate affects financial conditions, spending, aggregate demand and ultimately economic activity/inflation.

Interest-rate channel

Cash rate↑

→ other interest rates ↑
→ borrowing costs ↑
→ consumption ↓ + investment ↓
→ AD ↓

Household cash-flow channel

Cash rate↑

→ interest repayments ↑
→ household disposable income ↓
→ consumption ↓
→ AD ↓

Exchange-rate channel

Cash rate↑

→ Australian assets become relatively more attractive
→ demand for AUD ↑
→ AUD appreciates
→ exports ↓ + imports ↑
→ net exports ↓
→ AD ↓

Asset-price/wealth channel

Cash rate↑

→ asset prices may ↓
→ wealth ↓
→ consumption ↓
→ AD ↓

⚠ These channels should be understood as mechanisms through which monetary policy affects AD, rather than as separate monetary policies.

7. Basis points

Syllabus link — Topic 3

QCAA specifically requires percentage-point and basis-point changes in relation to monetary policy.

1 basis point=0.01 percentage points

Therefore:

100 basis points=1 percentage point

Example:

3.60%→3.85%

= +25 basis points

8. Percentage points

A percentage-point change is the absolute difference between two percentages.

Example:

2%→3%

= +1 percentage point

It is not necessarily a "1% increase."

C. SUPPLY-SIDE AND MICROECONOMIC POLICIES

Syllabus link — Topic 3

Comprehend and describe aggregate supply policies, including microeconomic reforms, and explain their relationship with domestic macroeconomic objectives.

1. Microeconomic reform

Microeconomic reform

Government policies designed to improve productivity, efficiency and/or competitiveness, increasing the economy's productive capacity.

General mechanism:

Microeconomic reform→Productivity/Efficiency/Competitiveness↑→Productive capacity↑→LRAS↑

2. Productivity

Productivity

The amount of output produced from a given quantity of inputs.

3. Efficiency

Efficiency

Using resources in a way that maximises economic benefits/output while minimising waste.

4. Competitiveness

Competitiveness

The ability of Australian firms/industries to compete successfully with domestic and international producers.

5. Infrastructure

Government investment in infrastructure can improve the economy's productive capacity and efficiency.

6. Education and training

Investment in education and training can improve human capital, labour productivity and productive capacity.

7. Research and development

R&D can contribute to technological progress, innovation and productivity.

8. Innovation

Innovation can improve production processes, products and productivity, increasing productive capacity.

9. Deregulation

Reducing unnecessary government regulations can potentially improve efficiency, productivity and competitiveness.

QCAA specifically identifies infrastructure, education and training, R&D, innovation and deregulation as supply-side policy examples.

10. ➕ QCAA GAPS — UNIT 4

These are important because your original notes did not fully cover all the things QCAA explicitly requires.

➕ Structural deficit

QCAA explicitly lists structural deficit as a key concept in Topic 1.

➕ Average propensities

QCAA explicitly requires:

Average propensity to consume
Average propensity to save

These are different from marginal propensities.

➕ Factors affecting the PPC

QCAA specifically requires students to explain the factors affecting the production possibility curve.

➕ Interest rates and federal budget decisions

QCAA explicitly requires understanding how interest rates and federal budget decisions influence economic growth.

➕ Intertemporal relationships

QCAA specifically requires evaluation of trade-offs involving intertemporal relationships.