Summary
Specialization and comparative advantage are key concepts in international trade, where countries focus on producing goods they can make most efficiently. This leads to increased global output and economic welfare.
- Absolute Advantage — when a country can produce a good more efficiently than another using the same resources.
Example: Spain has an absolute advantage in wheat production compared to Portugal. - Comparative Advantage — when a country can produce a good at a lower opportunity cost than another.
Example: Spain has a comparative advantage in wheat because it has a lower opportunity cost than Portugal. - Opportunity Cost — the cost of forgoing the next best alternative when making a decision.
Example: Portugal's opportunity cost of producing olive oil is 1.5 units of wheat. - Terms of Trade — the rate at which one good is exchanged for another between countries.
Example: If Portugal trades 1 unit of olive oil for 1.5 units of wheat, it benefits from trade. - Economies of Scale — cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale.
Example: Specialization allows countries to produce goods in bulk, reducing costs.
Exam Tips
Key Definitions to Remember
- Absolute Advantage
- Comparative Advantage
- Opportunity Cost
- Terms of Trade
Common Confusions
- Confusing absolute advantage with comparative advantage
- Assuming no transport costs in real-world trade scenarios
Typical Exam Questions
- What is comparative advantage? Comparative advantage occurs when a country can produce a good at a lower opportunity cost than another.
- How do terms of trade affect international trade? Terms of trade determine the exchange rate of goods between countries, impacting the benefits of trade.
- What are the limitations of the theory of comparative advantage? Limitations include assumptions like no transport costs and perfect mobility of factors.
What Examiners Usually Test
- Understanding of absolute vs. comparative advantage
- Ability to explain the benefits and limitations of specialization and trade
- Application of opportunity cost in trade scenarios