SACE Economics · Stage 2
SACE Economics Stage 2: The Global Economy — Flashcards & Quiz
SACE Stage 2 Economics develops your ability to think like an economist across interconnected themes. This set focuses on global economy concepts, exploring Australia's place in the international economic system. These 20 flashcards and 20 true/false questions are aligned to the SACE Board Stage 2 Economics subject outline, covering absolute and comparative advantage, free trade and protection, tariffs, quotas and subsidies, exchange rate determination, fixed vs floating exchange rates, the balance of payments (current account and capital/financial account), terms of trade, globalisation, international organisations (WTO, IMF, World Bank), economic integration and developing economies. Use spaced repetition to lock these concepts into long-term memory.
Key Terms
- Comparative advantage
- The ability of a country to produce a good at a lower opportunity cost than another country, forming the basis for mutually beneficial trade. SACE Board Stage 2 external examinations require students to calculate opportunity cost ratios and determine which country should specialise in which product for gains from trade.
- Balance of payments
- A systematic record of all economic transactions between residents of a country and the rest of the world, divided into the current account and the capital and financial account. SACE Stage 2 skills and applications tasks assess students' ability to interpret Australia's balance of payments data and explain the relationship between the two accounts.
- Exchange rate
- The price of one currency expressed in terms of another, determined in the foreign exchange market by the forces of demand and supply. SACE Board Stage 2 external assessments test the factors that cause the Australian dollar to appreciate or depreciate and the consequent effects on trade, inflation, and economic growth.
- Terms of trade
- The ratio of export prices to import prices, expressed as an index. SACE Stage 2 investigation tasks require students to analyse how changes in Australia's terms of trade, often driven by commodity price fluctuations, affect national income, the current account, and the exchange rate.
- Trade protection
- Government policies such as tariffs, quotas, and subsidies that restrict or distort international trade to shield domestic industries from foreign competition. SACE Board Stage 2 external examinations assess the welfare effects of protection using supply-demand diagrams and require evaluation of arguments for and against protection.
- Globalisation
- The increasing integration and interdependence of national economies through trade, investment, migration, and technology flows. SACE Stage 2 skills and applications tasks require students to evaluate the economic benefits and costs of globalisation for Australia, including impacts on South Australian industries and employment.
Sample Flashcards
Q1: Define absolute advantage and explain its relationship to trade.
A country has an absolute advantage in producing a good if it can produce more of that good with the same resources (or produce the same amount with fewer resources) than another country. While absolute advantage explains why some countries are better at producing certain goods, it does not fully explain trade patterns — comparative advantage is the basis for mutually beneficial trade.
Q2: Define comparative advantage and explain why it leads to mutually beneficial trade.
A country has a comparative advantage in a good if it can produce that good at a lower opportunity cost than another country. Even if one country has an absolute advantage in everything, both countries benefit from trade by specialising in the good where they have a comparative advantage. Total world output increases, and both countries can consume beyond their production possibility frontiers.
Q3: What are the benefits and costs of free trade?
Benefits: (1) increased efficiency through specialisation based on comparative advantage, (2) greater consumer choice and variety, (3) lower prices through competition, (4) access to larger markets (economies of scale), (5) technology transfer and innovation, (6) higher economic growth. Costs: (1) structural unemployment in uncompetitive industries, (2) loss of domestic industries, (3) environmental degradation, (4) income inequality may worsen, (5) dependence on foreign suppliers, (6) cultural homogenisation.
Q4: What are the main arguments for trade protection?
Arguments for protection: (1) infant industry — new industries need time to develop economies of scale, (2) national security — strategic industries (defence, food) must be maintained domestically, (3) anti-dumping — prevent foreign firms selling below cost to destroy domestic competition, (4) protecting employment in declining industries, (5) correcting trade imbalances, (6) maintaining environmental and labour standards. Counter-argument: protection raises prices, reduces efficiency, and invites retaliation.
Q5: How do tariffs work and what are their effects on the domestic market?
A tariff is a tax on imported goods. Effects: (1) increases the domestic price of the imported good, (2) reduces quantity of imports, (3) increases domestic production (domestic firms more competitive), (4) decreases consumer surplus (higher prices), (5) increases producer surplus (domestic firms gain), (6) generates government revenue, (7) creates a deadweight welfare loss (production and consumption inefficiency). Net effect: total welfare falls because consumer losses exceed producer gains + government revenue.
Q6: Compare the effects of quotas and subsidies as forms of trade protection.
Quota: a physical limit on the quantity of imports. Effects: reduces imports, raises domestic price, increases domestic production, but no government revenue (quota rent goes to importers/foreign producers). Creates deadweight loss. Subsidy to domestic producers: lowers their costs, allowing them to compete with imports without raising consumer prices. More efficient than tariffs/quotas because consumers still pay the world price. But subsidies cost the government (taxpayers) and may distort resource allocation.
Q7: Explain how exchange rates are determined in a floating exchange rate system.
In a floating system, the exchange rate is determined by supply and demand for the currency in the foreign exchange (forex) market. Demand for AUD: foreigners buying Australian exports, investing in Australia, or speculating. Supply of AUD: Australians buying imports, investing overseas, or speculating. Appreciation: demand for AUD increases or supply decreases. Depreciation: supply of AUD increases or demand decreases. Key influences: interest rate differentials, terms of trade, commodity prices, inflation rates, economic growth, speculation.
Q8: Compare fixed and floating exchange rate systems.
Fixed: government/central bank sets the rate and intervenes (buying/selling currency) to maintain it. Advantages: certainty for trade and investment, inflation discipline. Disadvantages: requires large foreign reserves, may conflict with domestic policy, vulnerable to speculative attacks. Floating: market forces determine the rate. Advantages: automatic adjustment to external shocks, independent monetary policy, no need for reserves. Disadvantages: volatility creates uncertainty, may overshoot, imported inflation when currency depreciates.
Sample Quiz Questions
Q1: A country with an absolute advantage in all goods cannot benefit from trade.
Answer: FALSE
Even with absolute advantage in everything, a country benefits from trade by specialising in goods where it has a COMPARATIVE advantage (lowest opportunity cost). Trade increases total world output.
Q2: Comparative advantage is based on opportunity cost, not absolute productivity.
Answer: TRUE
Comparative advantage exists where a country can produce a good at a lower OPPORTUNITY COST than another country, regardless of which country is more productive in absolute terms.
Q3: Free trade always benefits every industry within a country equally.
Answer: FALSE
Free trade benefits efficient exporting industries and consumers (lower prices, more choice) but harms industries that cannot compete with cheaper imports. The benefits are unevenly distributed.
Q4: The infant industry argument is considered the most economically valid case for protection.
Answer: TRUE
Infant industry protection allows new industries to develop economies of scale and competitive capacity before facing international competition. However, protection should be temporary and targeted.
Q5: Tariffs increase total economic welfare in the domestic economy.
Answer: FALSE
Tariffs reduce total welfare because the consumer surplus lost exceeds the sum of producer surplus gained and government revenue. The deadweight loss triangles represent net welfare reduction.
Why It Matters
The global economy topic examines how international trade, exchange rates, and capital flows connect national economies into an interdependent system. Understanding comparative advantage, trade barriers, and the balance of payments is essential for analysing Australia's economic relationships and evaluating trade policy debates. Stage 2 exams test your ability to apply trade theory to real-world scenarios and assess the impacts of globalisation on different stakeholders. This topic also requires you to understand how exchange rate movements affect trade competitiveness and inflation, connecting international economics to the macroeconomic concepts you have already studied. Understanding the current account and capital flows links directly to the economic policy module, where fiscal and monetary settings influence exchange rates and trade balances. Exam questions on the global economy commonly require you to analyse balance of payments data and explain how a change in commodity prices affects Australia's terms of trade and current account position.
Key Concepts
Trade Theory and Comparative Advantage
Comparative advantage explains why countries benefit from specialisation and trade even when one country can produce everything more efficiently. Calculate opportunity costs to determine comparative advantage and predict trade patterns. Understand the assumptions and limitations of the model, including its static nature and neglect of dynamic factors.
Trade Protection and Free Trade
Tariffs, quotas, and subsidies protect domestic industries but impose costs on consumers and reduce allocative efficiency. Analyse the effects of protection using supply and demand diagrams showing welfare losses. Evaluate arguments for and against protection including infant industry, national security, and anti-dumping rationales.
Exchange Rates
Exchange rates are determined by supply and demand for currencies in foreign exchange markets. Understand how interest rate differentials, trade flows, and speculation influence exchange rate movements. Analyse the effects of appreciation and depreciation on exports, imports, inflation, and economic growth.
Balance of Payments
The balance of payments records all economic transactions between a country and the rest of the world. Understand the relationship between the current account and capital and financial account. Analyse Australia's persistent current account deficit and evaluate whether it represents a structural problem or a natural consequence of investment inflows.
Common Mistakes to Avoid
- Confusing absolute advantage with comparative advantage — SACE Board Stage 2 marking rubrics require students to demonstrate that trade benefits arise from differences in opportunity cost (comparative advantage), not simply from one country being more productive in absolute terms.
- Stating that a current account deficit is always harmful without analysing its causes and sustainability — SACE Stage 2 external examination answers should distinguish between deficits funded by productive investment (which can generate future returns) and those driven by excessive consumption.
- Incorrectly claiming that a depreciation of the Australian dollar immediately improves the trade balance — SACE Board Stage 2 investigation assessments expect students to explain the J-curve effect, where the trade balance initially worsens before improving due to contract and adjustment lags.
- Treating free trade and trade protection as binary choices without recognising that most countries pursue a mix — SACE Stage 2 skills and applications tasks require students to evaluate specific trade policies in context, acknowledging that optimal policy depends on industry characteristics and economic conditions.
Study Tips
- Make flashcards for each type of trade barrier showing the diagram, welfare effects, and a real-world Australian example, then review with spaced repetition throughout the term.
- Practise comparative advantage calculations with two-country, two-good scenarios until you can quickly identify which country should specialise in which product.
- When analysing exchange rate changes, trace the full transmission mechanism from the initial cause through to effects on trade, inflation, and growth for complete answers.
- Use Australia's actual balance of payments data from the ABS to practise interpreting real figures, as examiners expect familiarity with the structure and typical values.
- For trade policy evaluation questions, always present both the efficiency argument and the equity or strategic argument to demonstrate balanced economic reasoning.
- Before your exam, work through the practice questions in this set at least twice using spaced repetition. Testing yourself repeatedly is the most effective revision strategy for long-term retention.
Related Topics
Frequently Asked Questions
What does SACE Stage 2 Economics global economy cover?
Building on the "Thinking Like an Economist" framework, this set covers international trade theory (absolute and comparative advantage), free trade and protection, exchange rates, the balance of payments, terms of trade, globalisation, and international economic organisations.
How many flashcards are in this set?
20 flashcards and 20 true/false quiz questions aligned to the SACE Board Stage 2 Economics subject outline.
Are these aligned to the SACE curriculum?
Yes — every card is mapped to the SACE Board Stage 2 Economics subject outline for global economy topics.
Last updated: March 2026 · 20 flashcards · 20 quiz questions · Content aligned to the SACE Board