4.1 - International Trade
Advantages and disadvantages of international trade
International trade involves countries exchanging goods and services across borders. Nations often specialise in items they can produce efficiently due to uneven global resource distribution, which means no single country can make everything it requires. This specialisation allows access to essential products like rare minerals through imports while exporting surplus goods.
Advantages of international trade
- Access to scarce resources - Countries can import items they lack the means to produce domestically, such as specific raw materials, by exporting their own specialised goods.
- Greater consumer choice - Trade provides a wider range of products and services, enhancing variety and often improving quality through global competition.
- Lower prices and innovation - Increased rivalry among firms drives down costs and encourages the development of new products to stay competitive.
- Improved living standards - Cheaper, higher-quality goods raise overall quality of life, while firms gain new markets abroad, enabling them to benefit from economies of scale.
- Knowledge and skill transfer - Exposure to international markets introduces fresh ideas and expertise, with multinational firms often sharing manufacturing techniques in developing regions.
Disadvantages of international trade
- Transport expenses - Shipping goods over long distances adds significant costs, which can offset some trade benefits.
- Currency conversion issues - Exchanging money between currencies may incur fees and lead to losses if exchange rates fluctuate unfavourably.
- Regulatory compliance - Businesses must meet foreign laws and technical standards, often requiring costly adaptations.
- Language and research barriers - Translating documents and conducting market studies in overseas locations increases operational expenses.
- Broader globalisation effects - Trade can amplify globalisation's downsides, such as economic interdependence that heightens vulnerability to global disruptions.
Absolute and comparative advantage
Absolute and comparative advantage explain why countries benefit from specialising in certain goods and trading with others. These concepts highlight how efficient resource use can boost global output and reduce costs per unit.
Absolute advantage
Absolute advantage occurs when a country produces more of a good using the same resources compared to another nation. For example, if Country A makes 12 units of wheat with one worker while Country B makes only 7, Country A has an absolute advantage in wheat.
By specialising in goods where they hold absolute advantage, countries increase total world production without using extra resources. This efficiency lowers average costs and allows more goods to be available overall.
Comparative advantage
Comparative advantage focuses on opportunity cost, which is the benefit forgone by choosing one production option over another. A country has a comparative advantage if its opportunity cost for producing a good is lower than that of other countries.
Key principles of comparative advantage:
- The law of comparative advantage suggests nations should specialise based on these lower opportunity costs to maximise global efficiency.
- Even if a country lacks absolute advantage in any good, it can still gain from trade by focusing on areas of comparative advantage.
Real-world limitations:
- Assumptions of no economies of scale or transport costs.
- Ignoring trade barriers, externalities, and imperfect information.
- Factors of production not always being fully mobile.
Specialisation in international trade and its drawbacks
Specialisation means countries focus on producing goods they can make efficiently, often due to abundant resources or skills. This approach uses global resources more effectively, increases total output, reduces costs, and can lead to lower prices for consumers, ultimately raising living standards.
Strategies for specialisation
- Partial specialisation - Countries often specialise partly rather than fully in one good, allowing increased output across multiple products without complete reliance on a single sector.
- Conditions for mutual benefit - Trade only occurs if terms are favourable for all parties, ensuring no country is worse off. If opportunity costs are identical between nations, no trade advantage exists.
- Avoiding full specialisation - Complete focus on one industry is rare, as it may not maximise overall gains and can expose economies to risks.
Disadvantages of specialisation
- Industry closures - Domestic sectors may decline or shut down due to cheaper foreign competition, leading to job losses.
- Overdependence risks - Relying heavily on one industry makes a country vulnerable to sector-specific problems, like price drops or supply disruptions.
- Supply vulnerabilities - Nations become dependent on imports for non-specialised goods, risking shortages if global supplies are interrupted.
- Skills mismatch for workers - Employees in fading industries may lack transferable skills, making it hard to find new employment without retraining.
Terms of trade and their implications
Terms of trade measure the relative prices of a country's exports against its imports, indicating how much imports can be obtained per unit of exports. An improvement occurs when export prices rise relative to imports, allowing a nation to afford more foreign goods.
Calculating terms of trade index
Where:
- Index of average export prices = A measure of export price changes over time (base year = 100)
- Index of average import prices = A measure of import price changes over time (base year = 100)
A rising index shows improving terms of trade, making the country "better off" as it can import more for the same exports. A falling index indicates worsening terms, meaning the country is "worse off." For trade to happen, both nations must at least maintain their position without deterioration.
Worked example - Calculating terms of trade index
In 2020 (base year), a country's average export price index is 100 and import price index is 100. By 2023, the export price index rises to 120, while the import price index increases to 110. Calculate the terms of trade index for 2023 and interpret the change.
Step 1: Identify the values
- Export price index (2023) = 120
- Import price index (2023) = 110
Step 2: Apply the formula
Step 3: Interpretation
The index of 109.1 shows an improvement in terms of trade since the base year, meaning the country can now afford more imports per unit of exports due to relatively higher export prices.
Benefits of trade for developed, developing, and emerging economies
International trade provides tailored advantages depending on a country's economic development stage, helping to sustain growth, access resources, and foster innovation.
Benefits for developed economies
- Sustaining high living standards - Imports of essential and luxury goods maintain quality of life, while competition from abroad keeps domestic prices low.
- Market expansion - Access to global consumers allows firms to scale up and innovate.
Benefits for developing economies
- Access to advanced goods - Importing technology and materials supports the creation of new industries and economic progress.
- Resource utilisation - Exporting raw materials generates income to fund development and improve infrastructure.
Benefits for emerging economies
- Balanced trade opportunities - These nations can import affordable basics from developing countries while acquiring sophisticated products from developed ones that they cannot yet manufacture.
- Industry growth - Trade exposure helps build skills and attract investment, accelerating transition to developed status.