Why do governments sometimes restrict trade, and what are the costs of doing so?
Explain protectionism, its methods such as tariffs and quotas, the arguments for and against it, and the case for free trade
A clear O-Level answer on protectionism and free trade. The methods of protection including tariffs, quotas and subsidies, the arguments for protecting industries, the costs to consumers and efficiency, and the case for free trade.
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What this dot point is asking
The syllabus wants you to explain protectionism and its methods, the arguments for and against it, and the case for free trade. The big idea is that although free trade raises total output and lowers prices, governments sometimes restrict trade to protect domestic industries, and an exam answer must weigh the gains of protection against its real costs.
The answer
Free trade versus protectionism
Free trade is trade between countries without barriers such as taxes or limits. Protectionism is the use of barriers by a government to restrict imports and protect domestic producers from foreign competition. The two are opposites: free trade removes barriers, protectionism adds them.
The methods of protection
Governments protect domestic industries in several ways:
- Tariffs. A tariff is a tax on imported goods. It raises the price of imports, so consumers switch toward cheaper domestic goods, protecting home producers. It also raises revenue for the government.
- Quotas. A quota is a physical limit on the quantity of a good that may be imported. By restricting the supply of imports, it directly reduces foreign competition.
- Subsidies to domestic producers. A subsidy lowers home firms' costs, helping them compete against imports.
- Other barriers. Examples include strict regulations or paperwork that make importing harder.
The arguments for protection
Governments give several reasons for protection:
- Protecting jobs. Limiting imports can save jobs in a domestic industry, at least in the short run.
- Protecting infant industries. A new (infant) industry may need protection until it grows large enough to gain economies of scale and compete.
- Guarding against dumping. Dumping is when foreign firms sell below cost to drive out rivals; protection can prevent this.
- Strategic and security reasons. A country may protect industries vital to its security, such as food or defence.
The arguments against protection
Protection has serious costs:
- Higher prices and less choice. Tariffs and quotas raise prices for consumers and narrow their choice.
- Protecting inefficiency. Shielding home firms from competition lets inefficient producers survive, so resources are not used where they are most productive, lowering total output.
- Risk of retaliation. Other countries may respond with their own barriers, starting a trade war that harms exporters on all sides.
The case for free trade
Free trade allows specialisation to raise total world output, gives consumers lower prices and wider choice, and forces firms to be efficient and innovative through competition. For most goods, economists argue free trade is better than protection, though some limited, temporary protection (for an infant industry or against dumping) can be defended.
Examples in context
Example 1. Singapore as a champion of free trade. Singapore has very few trade barriers and has signed many free trade agreements, because as a small, trade-reliant economy it gains greatly from open markets for its exports and cheap imports. Its prosperity is a strong example of the benefits of free trade.
Example 2. Tariffs in a trade dispute. When large economies impose tariffs on each other's goods in a trade dispute, prices rise for their consumers, supply chains are disrupted, and both sides' exporters can be hurt by retaliation. This illustrates the costs of protection and the danger of a trade war.
Try this
Cue. Define a tariff and a quota. A tariff is a tax on imported goods that raises their price; a quota is a physical limit on the quantity of a good that may be imported.
Cue. State two arguments in favour of protecting a domestic industry. Any two of: protecting jobs in the industry; protecting an infant industry until it can compete; guarding against dumping; or protecting industries vital to national security.
Cue. Explain one cost of protectionism to consumers. Tariffs and quotas raise the price of goods and narrow consumer choice, because cheaper or more varied imports are taxed or limited.
Exam-style practice questions
Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Original6 marksExplain how a tariff and a quota each protect domestic producers from foreign competition.Show worked answer →
A 6 mark question rewards both methods defined and the way each protects home firms.
- Tariff
- A tariff is a tax on imported goods. It raises the price of imports, making them more expensive than before. Consumers then switch some spending to cheaper domestic goods, so home producers sell more and are protected.
- Quota
- A quota is a physical limit on the quantity of a good that can be imported. By restricting the supply of imports, it reduces foreign competition directly, so domestic producers can sell more and may charge higher prices.
- Contrast
- A tariff protects by raising the price of imports; a quota protects by limiting their quantity. Both shift demand toward domestic producers.
Markers reward the tariff as a tax raising import prices, the quota as a limit on import quantity, and the point that both protect home producers by reducing the competitiveness or availability of imports.
Original8 marksDiscuss whether a government should protect a domestic industry from foreign competition using tariffs.Show worked answer →
A 8 mark discuss question rewards arguments for and against protection with a judgement.
- Arguments for
- Protection can save jobs in the industry, at least in the short run. It can protect a new (infant) industry until it grows large enough to compete. It can guard against dumping, where foreign firms sell below cost to drive out rivals.
- Arguments against
- Tariffs raise prices for consumers and reduce their choice. They protect inefficient firms, so resources are not used where they are most productive, lowering total output. Other countries may retaliate with their own tariffs, harming the country's exporters.
- Judgement
- Protection may be justified temporarily, for an infant industry or against dumping, but as a permanent policy it tends to cost consumers and reduce efficiency, and risks a trade war. For most goods, free trade is better, though some carefully limited protection can be defended.
Markers reward valid arguments on both sides, including the cost to consumers and the risk of retaliation, and a balanced conclusion rather than a one-sided case.
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