Economics · Secondary 4 · International Trade and Globalisation · Semester 2

Benefits and Costs of International Trade

Analyzing the overall gains from trade and the potential negative impacts on domestic industries.

• MOE Syllabus Outcomes
• MOE: International Trade and Globalisation - S4

About This Topic

Protectionism refers to government policies that restrict international trade to help domestic industries. Common tools include tariffs (taxes on imports), quotas (limits on quantity), and subsidies for local producers. For Secondary 4 students, this topic involves evaluating the arguments for protectionism (like protecting 'infant industries' or national security) against the clear economic benefits of free trade.

As a major global trade hub, Singapore generally champions free trade and has very few trade barriers. However, students must understand why other nations might turn to protectionism and how 'trade wars' can impact a small, open economy like ours. This topic comes alive when students can debate the merits of protecting a specific industry. Active learning helps them see the tension between short-term political goals and long-term economic efficiency.

Key Questions

1. Analyze how international trade leads to greater variety and lower prices for consumers.
2. Explain the potential job displacement and structural unemployment caused by increased imports.
3. Evaluate the overall welfare gains from free trade versus the costs to specific sectors.

Learning Objectives

• Analyze how specialization and comparative advantage lead to increased global output and consumer choice.
• Explain the impact of imports on domestic employment levels and the potential for structural unemployment.
• Evaluate the overall welfare gains from free trade, considering both consumer surplus and producer surplus.
• Critique arguments for protectionism, such as infant industry protection, using economic principles.

Before You Start

Supply and Demand

Why: Students need a solid understanding of how prices are determined by supply and demand to analyze the impact of trade on prices and quantities.

Opportunity Cost

Why: The concept of opportunity cost is fundamental to understanding comparative advantage and the gains from specialization in trade.

Key Vocabulary

Comparative Advantage	The ability of a country to produce a good or service at a lower opportunity cost than another country, forming the basis for mutually beneficial trade.
Terms of Trade	The ratio of a country's export prices to its import prices, indicating how many imports can be obtained for a given quantity of exports.
Structural Unemployment	Joblessness that occurs when there is a mismatch between the skills workers possess and the skills employers need, often exacerbated by shifts in industry due to trade.
Consumer Surplus	The economic gain consumers receive when they are willing to pay more for a product than its market price, often increased by imports offering lower prices.
Infant Industry Argument	The economic rationale for temporarily protecting a nascent domestic industry from international competition until it can grow and become competitive.

Watch Out for These Misconceptions

Common Misconception

Tariffs are paid by the exporting country.

What to Teach Instead

Tariffs are a tax collected by the importing country's government, usually paid by the domestic companies that are importing the goods. These costs are then often passed on to local consumers in the form of higher prices. A 'price tag' activity can help students see how a tariff added at the border ends up in the final shop price.

Common Misconception

Protectionism 'saves' jobs for the whole economy.

What to Teach Instead

While protectionism may save jobs in one specific industry, it often destroys jobs in other sectors (e.g., by making raw materials more expensive for other manufacturers) and reduces overall economic efficiency. Peer discussion about the 'hidden costs' of a tariff can help students see the broader impact on the labor market.

Active Learning Ideas

Simulation Game: The Trade War

Divide the class into 'Country A' and 'Country B'. Start with free trade, then allow one country to 'protect' its industry with a tariff. Students observe the retaliatory tariffs and the resulting decrease in total trade and increase in prices for consumers. This vividly illustrates the 'lose-lose' nature of trade wars.

45 min·Whole Class

Formal Debate: Protecting the 'Infant'

Students debate whether a developing country should be allowed to use tariffs to protect its new tech industry from foreign competition. One side argues for the 'infant industry' argument, while the other argues that protectionism leads to inefficiency and higher prices. They must use a tariff diagram to show the impact on consumer and producer surplus.

45 min·Small Groups

Gallery Walk: Tools of Protectionism

Post descriptions and diagrams of tariffs, quotas, and subsidies around the room. Students move in pairs to identify how each tool affects the domestic price, the quantity of imports, and government revenue. They record the specific 'winners' and 'losers' for each tool.

30 min·Pairs

Real-World Connections

• Singapore's reliance on imported food, such as vegetables from Malaysia and fish from Vietnam, demonstrates how international trade provides variety and quantity that domestic production alone cannot meet.
• The automotive industry in many countries faces challenges from imported vehicles, leading to debates about tariffs or subsidies to protect local manufacturing jobs and related supply chains.
• Consumers in Singapore benefit from a wide range of electronics, from South Korean smartphones to Japanese cameras, often at competitive prices due to global supply chains and specialization.

Assessment Ideas

Discussion Prompt

Pose this question: 'Imagine Singapore completely opened its borders to all goods with zero tariffs. Which domestic industries might struggle the most, and why? What specific types of jobs might be affected?' Facilitate a class discussion, encouraging students to use economic terms like comparative advantage and structural unemployment.

Quick Check

Provide students with a short case study about a hypothetical country considering imposing tariffs on imported textiles to protect its domestic industry. Ask them to write two bullet points explaining the potential benefits for the domestic textile producers and two bullet points explaining the potential costs to consumers and other industries in that country.

Exit Ticket

On an index card, ask students to write one sentence explaining how international trade increases consumer choice and one sentence explaining a potential negative consequence for a domestic industry. Collect these as students leave to gauge understanding of both benefits and costs.

Frequently Asked Questions

What is a tariff and how does it work?

A tariff is a tax imposed on imported goods. It increases the cost of the good for domestic consumers, which reduces the quantity of imports and allows domestic producers to sell more at a higher price. It also generates tax revenue for the government, but it leads to a loss in overall social welfare (deadweight loss).

Why would a country use a quota instead of a tariff?

A quota is a physical limit on the quantity of a good that can be imported. Governments might prefer quotas if they want a guaranteed limit on imports regardless of price changes. However, unlike tariffs, quotas do not generate revenue for the government unless the import licenses are sold.

How can active learning help students understand protectionism?

Active learning, like the 'Trade War' simulation, allows students to see the 'unintended consequences' of policy. When they see their own 'consumer' tokens lose value because of a tariff meant to 'help' them, the concept of a 'welfare loss' becomes much more than just a shaded area on a graph. This helps them write more nuanced evaluations in their exams.

What is the 'infant industry' argument?

This is the argument that new industries in developing countries need temporary protection from established foreign competitors until they grow large enough to achieve economies of scale and become competitive. While theoretically sound, it is often criticized because these 'infants' may never 'grow up' and become efficient.