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Spec mapping (AQA 7037): Paper 2, §3.2.1 — access to markets, including special and differential treatment within the WTO framework; trade agreements; the differential access of developing countries to markets; the unequal "rules of the game"; the role of trade in development. Synoptic links to §3.2.4 (Resource Security — commodity dependence and food/energy trade) and §3.2.2 (Changing Places — how commodity dependence shapes the economy of producer regions such as Ghana's cocoa belt or Zambia's Copperbelt). AOs: AO1 (WTO, trade blocs, fair vs free trade, terms of trade, Prebisch–Singer, resource curse), AO2 (explaining how access is structured by power and applying it to producer countries) and AO3 (interpreting terms-of-trade indices, commodity-price and trade-share data).
Access to international markets is one of the most important determinants of a country's economic development. But access is not equal — it is shaped by powerful institutions, trade agreements, and structural inequalities in the global trading system. This lesson examines the organisations and mechanisms that govern international trade and evaluates their impact on different groups of countries.
It is worth fixing three contrasting philosophies of trade at the outset, because the whole lesson is a debate between them:
| Approach | Core idea | Beneficiaries (claimed) | Key critique |
|---|---|---|---|
| Free trade | Remove all barriers; let comparative advantage allocate production | All consumers (lower prices); efficient producers | Gains uneven; locks periphery into low-value commodities |
| Fair trade | Guarantee producers minimum prices and a social premium | Small producers in the developing world | Tiny scale; doesn't change structural rules |
| Protected trade | Use tariffs/subsidies to shield domestic producers | Domestic firms and workers (esp. infant industries) | Raises consumer prices; invites retaliation |
The central tension of the global trading system is that the rules are written as if free trade is neutral, while the most powerful players (the EU, USA) simultaneously protect their own agriculture — a double standard explored below.
The World Trade Organisation was established in 1995 as successor to the General Agreement on Tariffs and Trade (GATT, 1947). Headquartered in Geneva, it has 164 member states (as of the mid-2020s), accounting for approximately 98% of world trade. Its founding principle is non-discrimination, expressed through the "Most Favoured Nation" (MFN) rule: a concession granted to one member must be granted to all.
| Function | Detail |
|---|---|
| Negotiating trade liberalisation | Organises multilateral "rounds" to reduce tariffs and barriers |
| Dispute resolution | Provides a binding legal framework for resolving trade disputes between members |
| Monitoring trade policies | Reviews members' trade policies for transparency and compliance |
| Technical assistance | Supports developing countries in building trade capacity |
The WTO formally recognises that members are not equal through Special and Differential Treatment — a set of provisions allowing developing countries longer transition periods, lower obligations and (in principle) preferential market access. The "Everything But Arms" (EBA) scheme of the EU, for instance, grants the 46 Least Developed Countries duty-free, quota-free access for all goods except arms. S&DT is the WTO's answer to the criticism that "equal rules between unequal players" entrench inequality. In practice, however, critics argue S&DT is patchy, non-binding in much of its scope, and undermined by the agricultural subsidies of rich members.
The Doha Development Round, launched in 2001, explicitly aimed to address the needs of developing countries. It has largely stalled due to a north–south impasse:
Exam Tip: The stalling of Doha is the single best illustration that the WTO's "one-member-one-vote" formal equality masks real power imbalances. Use it to evaluate whether the WTO genuinely serves developing countries or primarily institutionalises the interests of the most powerful trading blocs.
Trade blocs are groups of countries that agree to reduce or eliminate barriers to trade between member states — a form of regional integration that can promote trade creation but may also cause trade diversion.
| Type | Features | Example |
|---|---|---|
| Free Trade Area | No tariffs between members; each member sets its own external tariffs | USMCA (USA, Canada, Mexico); ASEAN Free Trade Area |
| Customs Union | No internal tariffs; common external tariff | MERCOSUR (Brazil, Argentina and others) |
| Single/Common Market | Customs union + free movement of labour and capital | EU Single Market |
| Economic Union | Single market + harmonised economic policy, possibly a common currency | European Union (Eurozone) |
graph LR
A[Free Trade Area] --> B[Customs Union]
B --> C[Common Market]
C --> D[Economic Union]
D --> E[Full Political Union]
| Bloc | Members | Depth | Notes |
|---|---|---|---|
| EU | 27 | Economic union | Deepest bloc; single market + euro (20 states) |
| USMCA (ex-NAFTA, 2020) | 3 | Free trade area | Replaced NAFTA; stronger labour/auto rules-of-origin |
| ASEAN | 10 | Free trade area | SE Asian bloc; growing intra-regional supply chains |
| AfCFTA (2021) | 54 | Emerging free trade area | African Continental FTA — potentially the world's largest by membership; aims to lift intra-African trade above its current ~15% |
The EU is the world's most advanced trade bloc and (historically) the UK's most important trading partner:
Brexit (the UK's departure in 2020) illustrates the tension between sovereignty and integration. The UK left the single market and customs union, regaining control over immigration and trade policy but raising new barriers with its largest partner. Studies suggest UK–EU goods trade fell by around 15% in the year after the new arrangements took effect, with the Office for Budget Responsibility estimating a long-run productivity/GDP cost of roughly 4%.
| Effect | Description | Example |
|---|---|---|
| Trade creation | The bloc increases trade by removing internal barriers, enabling specialisation | EU membership materially increased UK–EU trade |
| Trade diversion | The bloc diverts trade from efficient non-members to less efficient members | The EU's common external tariff can make cheaper non-EU goods dearer than EU alternatives — harming, e.g., African exporters |
The terms of trade measure the ratio of a country's export prices to its import prices — how much a country can import for a given volume of exports.
Key Definition: Terms of trade = (Index of export prices / Index of import prices) × 100. A value above 100 indicates favourable terms; below 100, unfavourable. Formally:
ToT=PimportsPexports×100
Raúl Prebisch (1950) and Hans Singer (1950) independently argued that the terms of trade of primary-commodity exporters tend to decline over time relative to manufactured-goods exporters. Developing countries must therefore export ever-larger volumes of raw materials to buy the same volume of manufactured imports — a structural "treadmill".
| Mechanism | Explanation |
|---|---|
| Low income elasticity of demand for primary products | As incomes rise, demand shifts towards manufactures and services (Engel's Law) |
| Synthetic substitutes | Innovation creates substitutes for natural materials (synthetic rubber, fibre optics for copper) |
| Agricultural subsidies in rich countries | Subsidised over-production depresses world prices |
| Market power of TNC buyers | Commodity traders (Cargill, Nestlé) exercise monopsony power, depressing producer prices |
| Volatility | Primary prices swing dramatically, creating instability and discouraging investment |
Exam Tip: Prebisch–Singer is the mechanism that operationalises Wallerstein's core–periphery model. Declining terms of trade are precisely how value is transferred from periphery to core through ordinary market exchange — no conspiracy required.
Consider this (representative) terms-of-trade index for a single commodity-dependent country, base year 2010 = 100:
| Year | Export price index (commodities) | Import price index (manufactures) | Terms of trade |
|---|---|---|---|
| 2010 | 100 | 100 | 100 |
| 2015 | 92 | 108 | 85 |
| 2020 | 85 | 116 | 73 |
Describe. The terms of trade have deteriorated steadily, from 100 (2010) to 73 (2020) — a fall of 27 index points.
Manipulate. Compute the percentage change and what it implies for export volumes:
percentage change=10073−100×100=−27%
A terms-of-trade index of 73 means the country must now export roughly 37% more in volume to buy the same basket of imports it bought in 2010, because 100/73≈1.37.
Explain. The divergence — export prices falling while import prices rise — is exactly the Prebisch–Singer pattern: commodity prices weakened (low income elasticity, substitutes, oversupply) while the manufactures the country imports rose in price. The result is a real-income loss transmitted entirely through "free" market exchange.
Evaluate. A single index can mislead. Terms of trade are volatile: a commodity super-cycle (as in 2003–2008, driven by Chinese demand) can reverse the trend for years, so a three-point series may catch only one phase. The index also says nothing about volume or value added; a country could improve its position not by hoping prices rise but by moving up the value chain (processing cocoa into chocolate rather than exporting beans). So the data support Prebisch–Singer here but the policy implication — diversify and add value — matters more than the snapshot.
Fair trade is a trading partnership that seeks more equitable terms for producers in developing countries. The Fairtrade Foundation (established 1992 in the UK) certifies products meeting specific standards.
| Arguments For | Arguments Against |
|---|---|
| Guarantees income above volatile market prices | Reaches only a tiny fraction of global producers (well under 1% of global trade) |
| Empowers producer cooperatives and communities | May not reach the poorest farmers, who cannot afford certification |
| Raises consumer awareness of trade inequality | Premium pricing limits demand; recession-sensitive |
| Demonstrates an alternative trade model | Does not change the structural rules of the global system |
| Funds education, healthcare, infrastructure | Certification costs can be prohibitive for smallholders |
Case Study: Kuapa Kokoo, Ghana. This cocoa farmers' cooperative has around 100,000 members and co-owns the Divine Chocolate brand sold in UK supermarkets. Fairtrade premiums have funded schools, wells and mobile health clinics, giving farmers a genuine stake in the downstream value (Divine ownership). Yet Fairtrade cocoa is only a small share of Ghana's output, and global cocoa farmers still capture a sliver of the final bar — illustrating both the promise and the limits of fair trade as a supplement to, not a replacement for, structural reform.
Beyond multilateral WTO negotiations, countries increasingly pursue bilateral and regional agreements:
The proliferation of overlapping deals creates what Jagdish Bhagwati called the "spaghetti bowl" of tangled rules and rules-of-origin. This particularly disadvantages developing countries with limited administrative capacity to negotiate and police dozens of agreements — itself a subtle barrier to market access.
The composition of a country's exports profoundly shapes its development:
| Characteristic | Primary-goods exporters | Manufactured-goods exporters |
|---|---|---|
| Value added | Low — raw materials sold cheaply | High — processing adds value |
| Price volatility | High — supply shocks, speculation | Lower — more stable demand |
| Terms-of-trade trend | Declining (Prebisch–Singer) | Improving |
| Employment | Often seasonal, low-skilled | Year-round, higher-skilled |
| Multiplier effects | Limited — few linkages | Significant — stimulates services and infrastructure |
| Examples | Zambia (copper), Ghana (cocoa), Nigeria (oil) | South Korea (electronics), Germany (vehicles) |
The resource curse ("paradox of plenty") describes how resource-rich countries often grow more slowly than resource-poor ones. Richard Auty (1993) coined the term; Jeffrey Sachs and Andrew Warner (1995) provided influential empirical support.
Mechanisms:
Case Study: Nigeria. Despite earning hundreds of billions of dollars from oil since the 1970s, Nigeria's poverty rate is around 40% (2022). Oil accounts for roughly 90% of export earnings but employs under 1% of the workforce — a textbook enclave economy with weak linkages. The Niger Delta has suffered severe environmental degradation (oil spills, gas flaring) and recurrent conflict. Nigeria exemplifies how commodity abundance combined with weak governance produces commodity dependence and the resource curse.
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