HSC Economics Topic 1: The Global Economy — Flashcards & Quiz

Q1: What is comparative advantage?

Comparative advantage is the ability of a country to produce a good or service at a lower opportunity cost than another country. It explains why international trade benefits all countries, even when one country has an absolute advantage in producing all goods. Comparative advantage forms the theoretical basis for free trade and specialisation. Countries should specialise in producing goods where they have the lowest opportunity cost and trade for other goods.

Q2: What are the main arguments for free trade?

Free trade increases economic efficiency by allowing countries to specialise according to comparative advantage. It provides consumers with greater choice and lower prices through increased competition. Free trade encourages innovation and productivity growth as domestic firms face global competition. It allows economies of scale as firms access larger export markets. Overall, free trade maximises global economic welfare, though it may create short-term adjustment costs for some domestic industries.

Q3: What is a tariff and what are its economic effects?

A tariff is a tax imposed on imported goods, raising their price in the domestic market. Tariffs protect domestic producers from foreign competition by making imports less price-competitive. However, they reduce economic efficiency, lead to higher consumer prices, and invite retaliation from trading partners. Tariffs may also protect infant industries temporarily or be used strategically in trade negotiations. Overall, economists generally view tariffs as economically inefficient except in specific circumstances.

Q4: What is globalisation and what are its main causes?

Globalisation is the increasing integration and interdependence of national economies through trade, investment, technology, and migration. Main causes include advances in transport technology (containerisation, air freight), information and communication technology (internet, mobile), reduction in trade barriers (WTO, FTAs), and growth of multinational corporations. Financial deregulation has also enabled rapid international capital flows. Globalisation has accelerated significantly since the 1980s.

Q5: What are the economic effects of globalisation?

Globalisation increases international trade and investment flows, raising global economic growth and living standards. It enables countries to specialise according to comparative advantage, improving allocative efficiency. Globalisation spreads technology and knowledge internationally, boosting productivity. However, it can increase income inequality within countries as some workers and regions benefit more than others. Globalisation may also increase economic volatility as countries become more exposed to global economic shocks. Overall, globalisation creates winners and losers, requiring government policies to manage adjustment costs.

Q6: What is an exchange rate and how is the AUD determined?

An exchange rate is the price of one currency in terms of another currency. Australia operates a floating exchange rate system where the value of the Australian dollar is determined by supply and demand in the foreign exchange market. Demand for AUD comes from exports, foreign investment into Australia, and speculation. Supply of AUD comes from imports, Australian investment abroad, and speculation. The RBA does not set a target exchange rate but may intervene to smooth excessive volatility.

Q7: What factors affect the value of the Australian dollar?

The AUD is heavily influenced by commodity prices, particularly iron ore, coal, and LNG, as Australia is a major commodity exporter. Higher commodity prices increase demand for AUD. Interest rate differentials affect the AUD as higher Australian rates attract foreign capital. Relative inflation rates matter because high inflation reduces currency value. Australia's economic growth rate affects investor confidence and capital flows. The AUD is also influenced by global risk sentiment, often falling during global crises as investors seek safe-haven currencies like USD.

Q8: What are the economic effects of exchange rate changes?

A depreciating AUD makes Australian exports cheaper and more competitive internationally, increasing export volumes but reducing the AUD value of export earnings. Imports become more expensive, potentially causing imported inflation and improving the trade balance. Appreciation has opposite effects: exports less competitive, imports cheaper, potential deflation, and worsening trade balance. Exchange rate changes also affect foreign debt servicing costs denominated in foreign currency. Volatility can create uncertainty for businesses engaged in international trade, potentially reducing investment.

Q1: Comparative advantage is based on differences in opportunity costs rather than absolute efficiency.

Answer: TRUE

Comparative advantage depends on which country has the lower opportunity cost for producing a good, not which country is absolutely more efficient. Even if one country is more efficient at producing everything (has absolute advantage in all goods), both countries can still benefit from trade by specialising according to their comparative advantages (lowest relative opportunity costs).

Q2: Free trade always benefits all workers in all industries without any adjustment costs.

Answer: FALSE

While free trade increases overall economic efficiency and welfare, it creates winners and losers. Workers in import-competing industries may face job losses and require retraining. Regions dependent on protected industries may experience structural unemployment. However, consumers benefit from lower prices and greater choice, and workers in export industries gain. The overall net benefit is positive, but adjustment costs are real and may require government assistance.

Q3: Tariffs on imported goods always improve a country's overall economic welfare.

Answer: FALSE

Tariffs generally reduce overall economic welfare by creating deadweight loss. While domestic producers benefit from protection and government gains tariff revenue, consumers lose more due to higher prices and reduced choice. The deadweight loss represents the efficiency cost of misallocating resources to less competitive domestic production. Tariffs may be justified in specific cases (infant industries, strategic sectors) but are generally economically inefficient.

Q4: Globalisation has been driven primarily by technological advances in transport, communications, and information technology.

Answer: TRUE

Technological advances are the primary driver of globalisation. Containerisation revolutionised shipping costs, air freight enabled rapid transport, and the internet enabled instant communication and e-commerce. These technologies drastically reduced the cost and time of international transactions. Policy changes (trade liberalisation, financial deregulation) and institutional developments (WTO, FTAs) have also contributed, but technology made globalisation economically feasible.

Q5: Globalisation has reduced income inequality both between countries and within countries.

Answer: FALSE

Globalisation has reduced income inequality between countries by enabling developing countries like China and India to grow rapidly and catch up with developed countries. However, globalisation has increased income inequality within many countries as highly skilled workers and capital owners benefit more than low-skilled workers facing competition from imports. Within-country inequality has risen in both developed countries (manufacturing job losses) and developing countries (urban-rural divides).

International Trade and Specialisation

Comparative advantage explains why countries specialise in producing goods where they have the lowest opportunity cost and trade for other goods. Free trade increases global efficiency and consumer welfare, though it creates adjustment costs for import-competing industries. Trade protection methods like tariffs and quotas reduce efficiency but may temporarily protect jobs or strategic industries. Understanding the theoretical benefits of trade versus political pressures for protection is crucial for HSC analysis.

Exchange Rates and the Forex Market

Australia's floating exchange rate is determined by supply and demand for AUD in the foreign exchange market. Key factors include commodity prices, interest rate differentials, inflation differentials, and investor confidence. Exchange rate changes affect export competitiveness, import prices, inflation, trade balance, and foreign debt servicing costs. The J-curve effect explains why depreciation initially worsens the trade balance before improving it over 6-12 months as volumes adjust.

Balance of Payments

The balance of payments records all economic transactions between Australia and the rest of the world. The current account includes trade (goods and services), primary income (investment returns), and secondary income (transfers). The capital and financial account records investment flows. By definition, CAD + KAFA = 0. Understanding the causes of current account deficits (savings-investment gap, loss of competitiveness) and their implications (foreign debt accumulation, exchange rate pressure) is essential for evaluation questions.

Globalisation and Economic Integration

Globalisation has accelerated since 1980 due to technological advances (transport, communications, internet), trade liberalisation (WTO, FTAs), and growth of multinational corporations. Globalisation increases trade, investment flows, and technology transfer, raising global growth and living standards. However, it creates winners and losers within countries, potentially increasing inequality. Free trade agreements like RCEP and ChAFTA provide improved market access but may cause trade diversion. International organisations (WTO, IMF, World Bank) establish rules, provide financing, and promote stability.

What is comparative advantage in HSC Economics?

Comparative advantage is the ability of a country to produce a good or service at a lower opportunity cost than another country. It forms the basis for international trade and specialisation, explaining why countries trade even when one country is absolutely more efficient at producing all goods.

How does the floating exchange rate system work in Australia?

Australia operates a floating exchange rate system where the value of the Australian dollar is determined by supply and demand in the foreign exchange market. The RBA does not set a target rate but may intervene to smooth excessive volatility. Factors affecting the AUD include commodity prices, interest rate differentials, and investor sentiment.

What is the difference between the current account and capital account?

The current account records trade in goods and services, primary income (investment returns), and secondary income (transfers). The capital and financial account records investment flows, including foreign direct investment and portfolio investment. Together they form the balance of payments, which must always sum to zero.