Pearson Edexcel International GCSE Economics: Trading blocs, WTO, trade patterns (4EC1)

This guide is aligned to the Pearson Edexcel International GCSE Economics (4EC1) specification, Issue 3, and covers statements 2.2.2 d), e) and f) in the section on international trade: trading blocs, the World Trade Organization (WTO) and trade patterns. The content is examined in Paper 2: Macroeconomics and the Global Economy. The specification has a single tier of entry. The countries, firms and numbers in the worked examples are made up.

Related pages: revision notes, practice questions, the course hub, the printable checklist, the current account guide, the elasticity guide and the free diagnostics. Tariffs, quotas, subsidies and their diagrams (statements a to c) belong to a separate unit.

What you must be able to do

Statement	What it asks
2.2.2 d)	Explain the impact of trading blocs on member and non-member countries, and give examples of trading blocs
2.2.2 e)	Explain the role of the WTO, including the actions it takes
2.2.2 f)	Describe the trade patterns of developed and developing countries

Trading blocs

A trading bloc is an agreement among countries to cut or remove trade barriers between themselves. Members usually keep barriers against everyone else. The groups differ in how far they go.

Type	Barriers between members	Barriers against non-members
Free-trade area	Removed	Each member sets its own
Customs union	Removed	One common external tariff
Common market	Removed, plus free movement of labour and capital	One common external tariff

Some blocs go further, with a shared currency. The deeper the bloc, the more policy control members give up.

Examples of trading blocs

Bloc	How it is usually described
European Union (EU)	Customs union and single market; some members share the euro
USMCA (United States, Mexico, Canada)	Free-trade agreement that replaced NAFTA
ASEAN	South-East Asian group with a free-trade area between members
Mercosur	South American customs union
African Continental Free Trade Area	Free-trade area across African countries

Memberships and agreements change, so check the current position in your course materials. Learn at least two examples and the type of each.

Impact on member countries

Benefits:

• Cheaper goods and more choice. Removing tariffs on partners lowers prices for consumers and for firms buying inputs.
• Bigger market. Firms sell to more customers without tariff barriers, so output rises and average cost can fall (economies of scale).
• More competition. Rivals from partner countries push firms to cut costs and improve quality.
• Investment. Firms from outside may build factories inside the bloc to avoid the external tariff, creating jobs.

Costs:

• Job losses. Inefficient firms that lose to partner imports may close.
• Lost independence. Members may have to follow common rules and cannot always set their own tariffs.
• Trade diversion (shown below), which can raise costs for the world as a whole.

Worked example 1: trade creation. Country A makes school desks at 80 per desk. Partner B can make them at 62. A has a 30% tariff on all imports.

• Before: B’s price with tariff = 62 × 1.30 = 80.6, so buying from B costs more than home desks at 80. A buys at home.
• After A and B form a bloc, the tariff on B goes to zero. B’s price is 62, below 80, so A switches to B.
• Saving per desk = 80 − 62 = 18, a fall of 18 ÷ 80 = 22.5%.
• A buys 5,000 desks, so buyers save 18 × 5,000 = 90,000.

Trade has been created because a high-cost home producer is replaced by a lower-cost partner. Resources move to uses where they are better employed.

Worked example 2: economies of scale. A tile firm in the bloc has fixed costs of 600,000 and variable cost of 30 per unit. Average cost = fixed cost ÷ output + variable cost.

• At 20,000 units: 600,000 ÷ 20,000 + 30 = 30 + 30 = 60.
• At 50,000 units: 600,000 ÷ 50,000 + 30 = 12 + 30 = 42.
• Fall in average cost = 18 ÷ 60 = 30%.

Larger sales across the bloc spread fixed costs over more units. Lower costs allow lower prices or higher profit.

Impact on non-member countries

A non-member faces the external tariff while partners trade freely. Its exports become dearer in the bloc than partners’ goods. It may lose sales and jobs, and may be tempted to retaliate.

Worked example 3: trade diversion. Country S taxes imports of tyres at 20%. Partner T sells at 50 and outsider V at 46. S imports 10,000 tyres a year.

• Before: V’s price with tariff = 46 × 1.20 = 55.2. T’s = 50 × 1.20 = 60. S buys from V, the cheaper source.
• After the bloc: T’s price is 50, V’s still 55.2. S switches to T.
• Consumer price falls from 55.2 to 50, a fall of 5.2 ÷ 55.2 = 9.4%. Buyers save 5.2 × 10,000 = 52,000.
• S’s government loses tariff revenue of 9.2 × 10,000 = 92,000.
• Real cost of tyres rises from 46 to 50, an extra 4 × 10,000 = 40,000. Net change = 52,000 − 92,000 = −40,000, which matches that extra cost.

Trade has been diverted from a lower-cost outsider to a higher-cost partner. Buyers gain but the country, and the world, is worse off.

Worked example 4: how V might respond. For V to win back sales, its price with tariff must not exceed T’s 50. Maximum price from V = 50 ÷ 1.20 = 41.67. That is a cut of (46 − 41.67) ÷ 46 = 9.4%. On 10,000 tyres, V’s revenue would fall from 460,000 to about 416,667. V could instead seek its own trade agreements or sell in other markets.

Evaluating blocs

Gains are larger when:

• members have a big cost gap with their old suppliers (more trade creation);
• partners are the cheapest producers (less diversion);
• members are close to each other, cutting transport costs.

Gains are smaller when:

• partners are high-cost, so diversion dominates;
• adjustment is hard for workers who lose jobs;
• non-members retaliate, hurting the bloc’s exporters.

A strong conclusion weighs these and states which matters most for the country given.

The World Trade Organization

The WTO is an international organisation, set up in 1995 and based in Geneva, that sets rules for trade between its members and helps them settle disputes. Its aim is freer trade with fewer barriers.

Role and actions

Role	Action
Forum for negotiation	Members meet to bargain over lower tariffs and other barriers, and the agreed deals become binding rules
Equal treatment	Rules say a member should not favour one trading partner over another in general (exceptions include trading blocs)
Settling disputes	If one member thinks another has broken the rules, it can file a complaint. A panel of experts rules, and the loser is asked to change policy
Allowing retaliation	If the loser does not comply, the winner may be authorised to impose trade restrictions of equal value
Monitoring	Members’ trade policies are reviewed regularly so that others can see what each is doing
Support for developing countries	Help with training, and some extra time to carry out commitments
Rules on unfair trade	Duties may be imposed on dumped goods when dumping is shown

Worked example 5: a dispute. Country N sells 800 million of steel a year to Country M. M adds a barrier that cuts N’s sales to 680 million.

• Loss of exports = 800 − 680 = 120 million.
• Percentage fall = 120 ÷ 800 = 15%.
• N complains to the WTO. If the ruling goes N’s way and M refuses to remove the barrier, N may be authorised to restrict M’s goods up to a value of about 120 million. The aim is to give M a reason to comply.

Evaluating the WTO

• For: disputes settled by rules, not power; negotiated cuts have helped trade grow; smaller countries gain a voice.
• Against: talks need agreement among many members, so deals are slow; a poor country may lack the lawyers and money to bring a case; retaliation hurts a small country more than a large one; blocs favour members over non-members, which sits awkwardly with equal treatment.

Trade patterns

Trade patterns describe what countries export and import, and with whom.

Feature	Developed countries	Developing countries
Main exports	Manufactured goods, machinery, vehicles and services such as finance	Primary products (farm goods, minerals, fuels), often with some low-skill manufactures
Main imports	Other manufactures, raw materials, fuel, food	Machinery, vehicles, technology, fuel, some food
Range of exports	Wide	Often narrow, with a few products making up most earnings
Main partners	Mostly other developed countries	Often a few large trading partners
Income from exports	Stable, as manufactures and services hold prices better	Unstable, because primary product prices swing

Many developing countries now export more manufactured goods and trade more with each other. Check recent examples in your course materials.

Worked example 6: dependence on one product. Country D earns 500 million from exports, 62% from coffee.

• Coffee earnings = 0.62 × 500 = 310 million. Other exports = 190 million.
• Suppose a good harvest worldwide cuts the coffee price by 20%. Demand for coffee is price inelastic, with PED = −0.5.
• Quantity demanded rises by 0.5 × 20 = 10%.
• New revenue = 0.80 × 1.10 = 0.88 of the old, a fall of 12%: 310 × 0.88 = 272.8 million, a loss of 37.2 million.
• Total exports fall from 500 to 462.8 million, a drop of 7.4%.

A country relying on one product sees earnings swing with its price. This makes planning harder.

Worked example 7: why growth differs. Take income elasticity of demand for coffee as 0.3 and for machinery as 1.5. If world incomes rise 10%, demand for coffee rises 0.3 × 10 = 3% and for machinery 1.5 × 10 = 15%. Exporters of machinery see demand grow much faster than exporters of primary products. This helps explain why developed economies, which export manufactures, often gain more from rising world incomes.

Trade also links to the balance of payments. If Country D imports 560 million and exports 500 million, the trade balance is 500 − 560 = −60 million, a deficit of 12% of export earnings.

Common errors

• Writing that a bloc means no trade barriers at all. Barriers fall between members only.
• Mixing up trade creation and trade diversion. Creation replaces a home producer with a cheaper partner. Diversion replaces a cheaper outsider with a dearer partner.
• Saying the WTO forces countries to obey. It rules and may authorise retaliation, but it has no army or police.
• Treating all developing countries as identical. Patterns vary, so use the country in the data.
• Giving a list where the question says explain. Each point needs a reason.

Exam technique

The specification says Explain needs a statement with two further expansion points, and Evaluate needs a supported conclusion. Use the country and numbers in the question. When you calculate, show the working, because the specification says workings should be given.

Official syllabus

Pearson Edexcel International GCSE in Economics (4EC1), specification Issue 3, first teaching September 2017, published by Pearson Education Limited. Statements 2.2.2 d), e) and f).