Comparative Advantage Examples: From Individuals to Nations (AP Macro)

📚 Quick Study Guide

• 🕰️ Comparative advantage focuses on the ability to produce a good or service at a lower opportunity cost than another producer.
• ⚖️ Opportunity cost is what you give up to produce something else. For example, if a country can produce either 10 cars or 20 bushels of wheat, the opportunity cost of 1 car is 2 bushels of wheat.
• 🎯 Individuals, firms, and countries should specialize in producing goods or services for which they have a comparative advantage.
• 🤝 Trade allows entities to consume beyond their own production possibilities.
• 🌍 Absolute advantage (producing more with the same resources) is different from comparative advantage. A country can have an absolute advantage in everything but *not* a comparative advantage in everything.
• ✏️ Formulas:
  • Opportunity Cost of Good A = $\frac{\text{Amount of Good B}}{\text{Amount of Good A}}$

🧪 Practice Quiz

1. Which of the following best defines comparative advantage?
   1. The ability to produce a good using fewer resources than another producer.
   2. The ability to produce more of a good than another producer.
   3. The ability to produce a good at a lower opportunity cost than another producer.
   4. The ability to produce a good faster than another producer.
2. If Country A can produce 10 cars or 30 bushels of wheat, and Country B can produce 5 cars or 10 bushels of wheat, which country has a comparative advantage in producing cars?
   1. Country A
   2. Country B
   3. Neither country
   4. Both countries
3. What is the opportunity cost for Country A to produce one car (using the same numbers as the previous question)?
   1. 3 bushels of wheat
   2. 1/3 bushels of wheat
   3. 2 bushels of wheat
   4. 1/2 bushels of wheat
4. Specialization and trade based on comparative advantage lead to:
   1. A decrease in overall production.
   2. Consumption possibilities beyond the production possibilities frontier.
   3. A decrease in the standard of living.
   4. Self-sufficiency for all countries.
5. Which of the following is true regarding absolute and comparative advantage?
   1. A country can have a comparative advantage in everything.
   2. A country can have an absolute advantage in everything.
   3. A country cannot have an absolute advantage if it has a comparative advantage.
   4. Absolute advantage is necessary for comparative advantage.
6. Suppose that Bob can wash 5 cars or mow 2 lawns in a day, and Jane can wash 6 cars or mow 3 lawns in a day. Which of the following statements is true?
   1. Bob has a comparative advantage in washing cars.
   2. Jane has a comparative advantage in washing cars.
   3. Bob has a comparative advantage in mowing lawns.
   4. They both have a comparative advantage in the same activity.
7. What is the fundamental basis for trade among nations?
   1. Absolute advantage.
   2. Comparative advantage.
   3. Similar resource endowments.
   4. Identical production technologies.