Trading blocs and economic integration, the European Union and monetary union, the World Trade Organisation, the terms of trade, and Welsh and UK trade links.

What this dot point is asking

WJEC wants you to explain trading blocs and economic integration, the European Union and monetary union, the role of the World Trade Organisation, the terms of trade, and Welsh and UK trade links, and to evaluate them.

The answer

Trading blocs and economic integration

Deeper integration brings larger markets, more competition, economies of scale and more trade and investment, but also a greater loss of national policy independence. Joining a customs union has two opposing effects on welfare: trade creation, where a country switches from a higher-cost domestic producer to a lower-cost producer within the union (a welfare gain), and trade diversion, where the common external tariff makes a country switch from a lower-cost producer outside the union to a higher-cost one inside it (a welfare loss). The net effect depends on whether trade creation outweighs trade diversion.

The European Union, monetary union and the WTO

Monetary union brings benefits, lower transaction costs, no internal exchange-rate uncertainty, price transparency, more trade, but imposes a major cost: members lose an independent monetary policy and exchange rate, so they cannot set interest rates or devalue to suit their own conditions. This is a serious problem if the union is not an optimal currency area and members are hit by asymmetric shocks, as the eurozone's difficulties have shown; adjustment then requires fiscal transfers or labour mobility. The WTO underpins the rules-based trading system, reducing tariffs and adjudicating disputes, though its negotiations are slow and it is criticised for the influence of richer members. These institutions shape the global trading environment in which the UK operates.

The terms of trade and UK and Welsh trade links

An improvement in the terms of trade (export prices rising relative to import prices) means a country can import more for a given volume of exports, raising welfare, though it may reduce export competitiveness. A deterioration is a particular problem for developing economies dependent on primary commodity exports, whose volatile and often falling relative prices can hold back development (linking to the development topic). UK and Welsh trade is heavily oriented towards the European Union and other major partners; Wales, like the UK, trades extensively with the EU, so changes in the UK-EU trading relationship and in global trade rules have a direct effect on Welsh exporters, which is why the UK's trade arrangements and competitiveness matter for the whole economy.

Examples in context

Example 1. The eurozone and asymmetric shocks. The eurozone illustrates both the benefits and the costs of monetary union. Members gained lower transaction costs and exchange-rate certainty, but those hit hardest by the financial and sovereign-debt crises could not devalue or set their own interest rates, forcing painful internal adjustment. The episode is the leading evidence that monetary union suits closely integrated, similar economies but imposes real costs on members that diverge, exactly the evaluation the exam expects.

Example 2. The UK, the EU and changing trade links. The UK's trade is dominated by the European Union, so leaving the single market and customs union reshaped its trade through new barriers and a new external trade policy, with direct effects on Welsh and UK exporters. The episode brings together trading-bloc theory (the loss of single-market access, trade creation and diversion), the terms of trade and competitiveness, making it a rich, locally relevant context for global-economics questions.

Try this

Q1. Define a customs union. [2 marks]

• Cue. A trading bloc with free trade between members and a common external tariff against non-members.

Q2. Explain one cost to a country of joining a monetary union. [3 marks]

• Cue. It loses an independent monetary policy and exchange rate, so it cannot set interest rates or devalue to suit its own conditions, which is a problem if it is hit by an asymmetric shock and the union is not an optimal currency area.