IB Economics Trade Protection

Trade War: The Biggest Economic Argument of the 21st Century And Still No Clear Winner

Target Question:

What are the arguments for and against trade protection in IB Economics?

On 6th July 2018, at exactly 12:01 am, the United States imposed tariffs of 25% on $34 billion worth of Chinese goods. By the time the sun rose over Beijing, China had replied with its own tariffs on American soybeans, pork, and seafood. Just like that, the world's two largest economies were officially at war - not with missiles, but with trade barriers.

Over the next two years, the US-China trade war escalated. The US eventually slapped tariffs on over $360 billion worth of Chinese exports. China retaliated on $110 billion of American goods. American farmers in Iowa and Nebraska watched their soybean export revenues collapse in a few hours - China had been their biggest customer. Meanwhile, American consumers started paying noticeably more for washing machines, solar panels, and electronics. US companies using Chinese steel and aluminium saw their production costs jump.

And at the same time - some American steelworkers in Pennsylvania kept their jobs. Some domestic manufacturers who'd been almost bankrupted by cheap Chinese competition got breathing room. Certain new strategic semiconductor factories were built on American soil as business had picked up again.

So who was right? The free traders who warned that tariffs would backfire? Or the protectionists who argued the US had been getting ripped off for decades?

This is exactly what this post is about. Both sides of the trade protection debate have genuine, strong arguments, and the outcome of the debate depends enormously on your interests, who you are, which industry you're in, and whether you're thinking short-term or long-term.

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The Eternal Debate: Free Trade vs Protection

The argument between free trade and trade protection is almost as old as economics itself. Adam Smith was making the case for free trade in The Wealth of Nations back in 1776.

The reason this debate never gets an ending is basically that both sides are partially right. Free trade genuinely does create wealth, efficiency, and consumer choice. But it also creates losers - workers in uncompetitive industries, communities dependent on a single factory, developing economies that can't survive global competition or at least, can't survive it yet. Trade protection genuinely does preserve jobs and strategic industries. But it also raises prices, breeds inefficiency, and invites retaliation.

IB Economics doesn't ask you to pick a side. It asks you to evaluate both - fairly, with evidence, and from multiple stakeholder perspectives. That's a much more valuable skill than memorising a position.

Ten Arguments for Trade Protection

1. Protection of Infant Industries

Infant industries (sometimes called sunrise industries) are newly established sectors that have the potential to develop a comparative advantage - but not yet. They're too small, too inexperienced, and too underfunded to compete with massive, established foreign firms that have decades of economies of scale behind them.

So, an infant industry (or sunrise industry) is a newly established domestic industry that has the potential to develop a comparative advantage but is currently too underdeveloped to compete with large, established foreign firms. Trade protection provides temporary shelter while the industry develops scale and competitiveness.

The argument for protecting them is easy to understand: give a young industry temporary shelter from foreign competition, let it develop, achieve scale, reduce costs, and it will eventually stand on its own feet in global markets. Then remove the protection.

IB Economics Real-life examples: South Korea's automotive industry in the 1970s. In 1975, Hyundai produced its first car - the Pony - with heavy government protection from foreign competition. American and European carmakers laughed. Forty years later, Hyundai-Kia is one of the world's top five car manufacturers and a genuine global competitor. The protection worked. More recently, China's aggressive subsidisation of its solar panel and electric vehicle industries followed the same logic - protect, develop, then conquer global markets. Love it or hate it, China now dominates global solar panel production.

The problematic issues are also evident: infant industries often grow up into dependent adults who never want to leave their parents home. Governments find it politically painful to remove protection once workers and voters have become dependent on this protection. And the decision about which industries are worth protecting is inevitably more political than economic.

2. National Security

Some industries are too strategically important and should not be left alone to face market forces. Governments argue that certain sectors - defence, food production, energy, semiconductor manufacturing - must be protected regardless of whether they're economically efficient, because allowing foreign dependence creates national vulnerability.

The US has used arms embargoes (complete bans on weapons exports) on multiple countries including China, Iran, and North Korea for decades. So, these aren't economic decisions - they're national security decisions.

More recently, the US CHIPS Act (2022) committed $52 billion to rebuild American semiconductor manufacturing on US soil only - because the US realised that its near-total dependence on Taiwanese chip production (TSMC) was a national security risk given China's territorial ambitions towards Taiwan. When your tanks, planes, and missiles all depend on chips you don't make yourself, that's a problem that market efficiency can't fix by itself.

Post-Ukraine war, the EU reached the same uncomfortable conclusion about energy. Decades of cheap Russian gas had been economically rational. It was also the wrong decision strategically. Energy security is now a core argument for European industrial protection that would have seemed alarmist five years ago.

3. Health and Safety Standards

Governments have a legitimate interest in ensuring that imported goods meet the same safety and quality standards required of domestic producers. Not every country has the same regulations, inspections, or enforcement culture - and some genuinely dangerous goods can enter markets if borders are completely open.

IB Economics Real-life examples: the Chinese infant formula scandal of 2008 - where melamine was deliberately added to milk powder, killing six babies and hospitalising thousands - triggered a wave of import bans and tightened regulations on Chinese dairy products across Asia, Europe, and beyond. These measures weren't about protectionism. They were about consumer protection.

The EU's strict standards on food safety, pharmaceutical quality, and chemical content (the REACH regulations) all serve as import filters - and while they do no favours to foreign producers, the underlying justification is consumer safety, not industrial protectionism. The challenge, as we'll see later on, is that the line between genuine safety standards and disguised protectionism can be very thin.

4. Environmental Standards

This is one of the fastest-growing arguments for trade protection in the 2020s, and it has a specific name: the Carbon Border Adjustment Mechanism (CBAM).

The EU officially launched CBAM in 2023 - essentially a carbon tariff on imports from countries with weaker climate regulations. Why? If European steelmakers have to pay for their carbon emissions under the EU's emissions trading scheme, but Chinese steelmakers don't face equivalent costs, then cheap Chinese steel has an unfair cost advantage. The carbon tariff regulates the market.

It's a genuinely interesting case because it's trade protection (benefiting EU steel producers) and environmental policy (encouraging foreign governments to tighten their own carbon rules) taking place at the same time. Critics from developing countries argue it's a new form of green protectionism disguised as climate policy. The EU argues it's the only fair way to maintain ambitious environmental standards without simply exporting pollution to countries with weaker rules. Both arguments may be right.

5. Anti-Dumping

Dumping:

Dumping occurs when foreign firms sell goods in another country at a price below their own cost of production - either because of government subsidies or deliberately, to destroy domestic competition and capture market share before raising prices.

The most significant recent example: Chinese steel exports. For years, Chinese state-owned steel companies - backed by government subsidies - flooded global markets with steel priced below production costs. British Steel, Tata Steel's UK operations, and dozens of European manufacturers faced bankruptcy. The EU and US imposed anti-dumping tariffs to counteract this.

More recently, Chinese electric vehicles have triggered the same response. In 2024, the EU imposed provisional tariffs of up to 48% on Chinese-made electric vehicles - specifically citing evidence of massive Chinese state subsidies that allowed BYD, SAIC, and others to undercut European carmakers at prices that no unsubsidised competitor could match. China called it protectionism. The EU called it anti-dumping enforcement. The WTO will probably spend the next decade deciding who was right.

6. Responding to Unfair Competition

Some governments argue that when foreign competitors benefit from unfair advantages - lower corporate tax rates, heavy state subsidies, lax labour laws, currency manipulation - it's legitimate to impose trade barriers in response.

The US has accused China of currency manipulation for a long time - deliberately keeping the yuan undervalued to make Chinese exports artificially cheap. Whether this constitutes unfair competition or simply smart monetary policy is another fierce debate. But it has been used as political justification for tariffs for decades.

The following IB Economics syllabus note is worth taking seriously: "perceptions of fairness are subjective and vary among stakeholders." What looks like unfair competition to an American steel worker looks like successful industrial policy to a Chinese economist. The argument leans more towards politics than economics, and you should acknowledge that in a possible exam essay.

7. Correcting Balance of Payments Deficits

The balance of payments is a record of all a country's financial transactions with the rest of the world. When a country imports more than it exports over a sustained period, it runs a current account deficit - money is flowing out faster than it's coming in.

Trade protection can reduce imports and narrow a current account deficit in the short run, but does not address the structural causes of balance of payments imbalances and may invite retaliatory measures from trading partners.

The UK, for example, has run a persistent current account deficit for most of the past four decades, consistently importing more goods and services than it exports. Some economists argue this is a structural problem that justifies targeted protection of domestic manufacturing.

The opposite argument - and it's a solid one - is that trade barriers address the symptom, not the cause. A current account deficit usually reflects deeper issues: low domestic savings, currency overvaluation, or simply a lack of competitive domestic production. Slapping tariffs on imports doesn't fix any of those underlying problems. But, it has to be mentioned, it may serve well as a short-term stabilisation tool.

8. Generating Government Revenue

Tariffs are taxes. Taxes raise money.

For economically less developed countries (ELDCs) with limited domestic tax bases and weak income tax collection systems, import tariffs can be a significant and relatively easy-to-collect source of government revenue. Goods passing through a port are visible and countable. In ELDCs domestic incomes are often difficult to account for.

This argument is most powerful for goods with inelastic demand - goods that people will continue buying even when prices rise. Tariffs on these goods can generate substantial revenue with minimal impact on the traded quantity. That revenue can then fund education, healthcare, or infrastructure investment that supports long-run economic development.

9. Protecting Jobs

When cheap foreign imports undercut domestic producers, workers lose jobs. Those aren't abstract economic statistics - they're real people, real communities, real towns. The collapse of British coal mining, the hollowing out of American manufacturing in the Rust Belt, the decline of French textile towns - all partly attributable to import competition. Trade protection, some of its advocates argue, is the most direct way to preserve those livelihoods.

Trump's 2018 steel and aluminium tariffs were explicitly framed as job protection - keeping steel workers employed in states like Pennsylvania and Ohio. Some steel jobs were indeed preserved. But as we'll explore in the disadvantages section, the same tariffs also cost jobs in industries - like car manufacturing and construction - that depend on cheap steel as an input. Trade-offs everywhere.

10. ELDC Diversification

Many of the world's economically least developed countries (ELDCs) are trapped in a pattern of over-dependence on one or two primary commodities - cocoa in Ghana, coffee in Ethiopia, copper in Zambia, sugar in Mozambique. This is economically a clear shortcoming: primary commodity prices are volatile, and the terms of trade for primary goods have historically trended downwards when compared to manufactured goods.

Economically least developed countries (ELDCs) often use trade protection to diversify away from dependence on one or two primary commodities, whose prices are volatile and whose terms of trade have historically deteriorated relative to manufactured goods.

Trade protection can give ELDCs a chance to develop and stabilise domestic manufacturing and services industries - sectors that add more value, employ more people, and are less subject to commodity price swings. Protecting a newly-born Ghanaian chocolate manufacturing industry (rather than just exporting raw cocoa beans) means more jobs, more value-added, and less exposure to the swings of global cocoa prices. This is the ELDC version of the infant industry argument, and the WTO's special and differential treatment provisions, for this reason, explicitly allow developing nations more flexibility to use protectionist measures.

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Seven Arguments Against Trade Protection

1. Misallocation of Resources

This is the core economic efficiency argument against protection, and it connects directly to the welfare loss diagrams we covered in the tariff and quota posts.

Trade protection creates a misallocation of resources by keeping factors of production (land, labour, capital) locked in industries that are not internationally competitive, generating a net welfare loss that is not captured by any stakeholder.

In a free market, resources flow to their most efficient use - the industries and firms best placed to use them productively. Trade protection disrupts this process. Tariffs and quotas keep resources tied up in industries that aren't internationally competitive, propping up firms that would not survive without government intervention. The result is a welfare loss - economic value destroyed by inefficiency - no stakeholder gets to keep this economic value. Consumer surplus falls more than domestic producer surplus rises. The market is worse off in net terms.

At the macro level, decades of agricultural protectionism in developed countries - the EU's Common Agricultural Policy, US farm subsidies - have locked enormous quantities of land, capital, and labour into food production that could, on pure efficiency grounds, be imported more cheaply from developing countries with genuine comparative advantages in agriculture.

2. Retaliation

Retaliation Risk:

A major disadvantage of trade protection is retaliation: when Country A imposes trade barriers, Country B often responds with equivalent measures, escalating into a trade war that raises prices and reduces welfare in both economies.

This might be the most dangerous consequence of trade protection, and the US-China trade war is the current perfect example.

When Country A imposes tariffs on Country B's exports, Country B retaliates with its own tariffs on Country A's exports. Country A raises its tariffs again. Before long, both countries are less economically open than they were before, consumers on both sides are paying higher prices, and the original dispute has created a structural trade conflict that takes years or decades to be solved.

The best historical example is the Smoot-Hawley Tariff Act of 1930. The US raised tariffs to near-record levels to protect American industry during the Great Depression. Sixty trading partners retaliated. Global trade collapsed by roughly 65% over three years. Economists widely regard Smoot-Hawley as one of the policies that turned a severe recession into the Great Depression. The lesson was learned, which is why GATT (and later the WTO) was created - specifically to prevent the same mistake from happening again.

3. Increased Costs for Domestic Firms

Tariffs and quotas don't just hit foreign companies. They hit domestic companies that use imported goods as inputs.

When Trump imposed steel and aluminium tariffs in 2018, the stated goal was to protect American steel workers. It worked - more or less - for them. But American carmakers, construction firms, and appliance manufacturers all depend on steel as a raw material. Their input costs rose sharply. Ford estimated the tariffs would cost it $1 billion in profits. Boeing paid more for aluminium. The "protected" industries' gains came directly at the expense of industries further down the supply chain.

This is an unintended consequence of protectionist policy you should take note of: you protect one part of the economy while inadvertently making another part less competitive.

4. Higher Prices for Consumers

Trade barriers raise domestic prices. That's not a side effect - it's how the mechanism works. And it's domestic consumers who pay.

IB Economics Real-life examples: a US study found that Trump's tariffs on washing machines raised the price of washing machines in America by approximately $86 per unit - with costs passed directly to households. The EU's Common Agricultural Policy keeps European food prices noticeably higher than they would be under free trade - effectively a hidden tax on every European family's weekly shopping list.

Lower consumer surplus, reduced purchasing power, and a decline in real living standards - these are the measurable costs that trade protection imposes on ordinary households. They rarely make the political argument, because diffuse losses spread across millions of consumers, are less visible than concentrated job losses in a single industry. But they are economically significant.

5. Less Choice

Open trade doesn't just mean cheaper goods - it means more variety. When trade barriers keep foreign products out of a market, domestic consumers lose access to the full range of international goods and services.

Before the EU-Japan trade agreement took effect in 2019, Japanese consumers faced significant barriers to European wine, cheese, and chocolate. European consumers faced barriers to Japanese cars and electronics. Both sets of consumers had less choice than they deserved. Since the agreement those barriers have been progressively removed, trade in both directions has grown substantially - and consumers in both markets have benefited from a wider range of products.

Reduced choice also reduces competitive pressure on domestic firms to innovate, improve quality, or reduce costs. Without foreign rivals to benchmark or compare against, domestic companies can become complacent - which feeds directly into the next argument.

6. Domestic Firms Lack Incentive to Become More Efficient

Competition is uncomfortable. It's also the primary driver of productivity growth, innovation, and cost reduction. Remove competition - through trade protection - and the pressure and worse, the need to improve simply vanishes.

IB Economics Real-life example: The EU's automotive industry provides a reasonable example at this stage. Protected for years by a combination of tariffs, technical standards, and import quotas, European carmakers were insulated from the most aggressive competitive pressure. When the EV revolution accelerated in the early 2020s - driven by Tesla in the US and BYD in China - European manufacturers found themselves dangerously behind on battery technology, software integration, and cost-competitive EV production. Volkswagen announced in 2024 that it was considering closing German factories for the first time in its history. Decades of comfortable protection had, in part, contributed to strategic complacency that the market is now punishing.

7. Reduced Export Competitiveness

Protecting domestic firms from import competition can make them less competitive in export markets - for all the same reasons outlined above. Inefficiency, higher costs, reduced innovation, and complacency all make it harder for protected domestic firms to win in global markets without government support.

Additionally, trading partners hit with protectionist measures are less likely to open their own markets to a country's exports. Goodwill matters in trade negotiations. A country that throws up barriers to others finds it harder to negotiate open access to a market abroad. The benefits of increased domestic demand from protection tend to be outweighed by the losses in export competitiveness over the long run.

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So How Should You Integrate All This in an IB Economics Essay?

IB Economics examiners are not looking for you to pick a side - they're looking for structured, balanced evaluation.

It Depends on Your Perspective

The same policy produces opposite outcomes depending on who you are. A tariff on imported steel is simultaneously:

• A job saver for steelworkers

• A cost increase for car manufacturers

• A price rise for consumers buying appliances

• A revenue source for the government

• A revenue loss for foreign steel exporters

There is no single "effect of a tariff." There are multiple effects, experienced differently by different stakeholders. An IB Economics essay that acknowledges this exact point will score far higher than one that claims protection is simply "good" or "bad."

Short Run vs Long Run

Trade protection typically produces positive short-run effects for domestic producers and workers but negative long-run consequences, including reduced efficiency, lack of innovation, and structural economic dependency on government intervention.

So, trade protection often has positive short-run effects and negative long-run consequences. Protecting an infant industry makes sense in the short run - but creates dependency in the long run if the protection is never removed. Preserving jobs in an uncompetitive industry helps workers today - but delays the structural adjustment that would create better, more sustainable employment in the future. The short-run political benefits of applying protection are what makes it so persistently popular despite the long-run economic costs and consequences.

The "Fairness" Problem

Arguments about unfair competition and dumping are real - but quite subjective at the same time. One country's industrial policy is another country's trade violation. One government's legitimate subsidy programme is another's unfair competitive advantage. These arguments are genuinely contested, and the IB Economics syllabus expects you to acknowledge that they are more political than economic.

The Economists' View

Most mainstream economists and international institutions including the WTO favour free trade over protectionism, citing evidence that open economies grow faster and raise living standards more effectively - while acknowledging that limited, targeted protection can be justified for national security, infant industry development, or anti-dumping purposes.

So, most mainstream economists favour free trade over protectionism - not because free trade is perfect, but because the evidence over the past 75 years shows that economies open to trade grow faster, innovate more, and raise living standards more effectively and quicker than protected ones. The WTO, IMF, and World Bank all lean strongly toward trade liberalisation as an economic development strategy.

But economics is a social science, not a physics equation. There are legitimate circumstances - infant industry protection, national security, genuine anti-dumping action - where even committed free traders acknowledge that some degree of intervention is justified. The issue isn't free trade versus protection. It's about which specific intervention, for which specific industry, for how long, and with what exit strategy.

That evaluated, evidence-based, multi-stakeholder perspective - rather than a dogmatic position either way - is exactly the position IB Economics examiners will reward you for.

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Quick Revision Checklist

Before moving on, make sure you can:

• State and explain all ten arguments for trade protection with at least one real-world example each

• State and explain all seven arguments against trade protection with at least one real-world example each

• Define dumping precisely and distinguish it from normal price competition

• Define infant industry and evaluate the case for protecting it (including long-run dependency risks)

• Explain why trade protection can raise costs for domestic firms that use imports as inputs

• Explain why the "unfair competition" and anti-dumping arguments are described as "more political than economic"

• Apply a multi-stakeholder perspective in evaluative answers - consumers, producers, government, foreign producers, and society

• Apply short-run vs long-run analysis to the costs and benefits of protection

• State the economists' broadly pro-free trade view while acknowledging legitimate exceptions

Frequently Asked Questions: Arguments For and Against Trade Protection

Q1: What are the main arguments for trade protection in IB Economics?

A: The ten main arguments for trade protection are: (1) protecting infant industries that need time to develop; (2) national security (protecting strategic sectors); (3) health and safety standards; (4) environmental standards; (5) preventing dumping by foreign firms; (6) responding to unfair foreign competition; (7) correcting balance of payments deficits; (8) generating government revenue from tariffs; (9) protecting domestic jobs; and (10) helping ELDCs diversify away from commodity dependence.

Q2: What are the main arguments against trade protection?

A: The seven main arguments against trade protection are: (1) misallocation of resources and welfare loss; (2) risk of retaliation and trade wars; (3) higher input costs for domestic firms using imported materials; (4) higher prices for consumers; (5) reduced choice for consumers; (6) reduced incentive for domestic firms to innovate and become efficient; and (7) reduced long-run export competitiveness.

Q3: What is dumping in economics?

A: Dumping occurs when foreign firms sell goods in another country at a price below their own cost of production. This can be due to government subsidies or a deliberate strategy to destroy domestic competition and gain market share. The WTO permits anti-dumping tariffs as a legitimate response, but proving dumping formally is legally complex and time-consuming.

Q4: Why do most economists prefer free trade over protectionism?

A: Most economists argue that free trade allocates resources more efficiently (through comparative advantage), creates more consumer choice, drives innovation through competition, and generates faster long-run economic growth. The evidence from post-WWII trade liberalisation is broadly supportive of this view. However, economists also recognise that free trade creates losers as well as winners, and that targeted protection can be justified in specific circumstances such as national security or genuine infant industry development.

Q5: How should I evaluate trade protection arguments in an IB Economics essay?

A: Use three analytical tools: (1) Perspective - identify how the policy affects each stakeholder differently (consumers, domestic producers, foreign producers, government, society); (2) Short run vs long run - note that protection often helps domestic producers in the short run but reduces efficiency, innovation, and export competitiveness in the long run; (3) Subjectivity - acknowledge that "unfair competition" arguments are politically charged and contested, and that the case for or against protection is rarely clear-cut.

Stay well,

Related Topics:

IB Economics Hub Page your IB Economics daily guide

IB Economics The Global Economy Hub Page access Arguments for and against trade protection here as well as the rest of the module

IB Economics Diagrams Page Check Unit 25 for Benefits of International Trade and unit 26 for types of trade protection diagrams with explanations

IB Economics Administrative Barriers Page to cover Administrative barriers" / "embargoes" content

IB Economics Activity book Page Module 4 The Global Economy Unit 4.4 for Trade Protection Arguments exam practice, activities, model answers and IB Economics Marking schemes

IB Economics Tariffs Page to refresh ideas on welfare analysis, market efficiency and some important concepts such as Consumer surplus / producer surplus / welfare loss

IB economics Calculations Book make sure you check unit 23 for Benefits of International trade and types of trade protection HL calculations exercises, IB model answers, and IB marking schemes

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