1. ECON202, Maclachlan, Spring 20051 Interdependence & Gains from Trade Week 2

2. ECON202, Maclachlan, Spring 20052 Principle #5 Trade can make everyone better off.

3. ECON202, Maclachlan, Spring 20053 What’s the alternative to trade? David Thoreau at Walden Pond.

4. ECON202, Maclachlan, Spring 20054 Autarky A policy of national self-sufficiency and nonreliance on imports or economic aid.

5. ECON202, Maclachlan, Spring 20055 Mercantilism A country should aim to run trade surpluses and increase its monetary assets.

6. ECON202, Maclachlan, Spring 20056 Adam Smith (1723-1790) Critic of mercantilism. Countries should specialize and trade. Specialize where there’s an ABSOLUTE ADVANTAGE

7. ECON202, Maclachlan, Spring 20057 ABSOLUTE ADVANTAGE A region has an absolute advantage if it takes fewer resources to produce a good there than elsewhere. Coffee in Columbia. Computer software in Silicon Valley.

8. ECON202, Maclachlan, Spring 20058 David Ricardo (1772-1823) Theory of comparative advantage. Even without an absolute advantage a region can trade to the benefit of all parties.

9. Table 1 The Production Opportunities of the Farmer and Rancher Copyright © 2004 South-Western

10. ECON202, Maclachlan, Spring 200510 Figure 1a The Production Possibilities Frontier

11. ECON202, Maclachlan, Spring 200511 Figure 1b The Production Possibilities Frontier

12. ECON202, Maclachlan, Spring 200512 Rancher’s Deal for Farmer Farmer stops producing meat and specializes in potatoes. In a week he can produce … 32 oz of potatoes. Farmer sells 15 oz to Rancher for 5 oz of meat. Farmer ends up with … 32 - 15 = 17 oz of potatoes and 5 oz of meat. Farmer is better off.

13. ECON202, Maclachlan, Spring 200513 Rancher’s Plan Spend 6 hrs producing 18 oz of meat. Sell 5 oz and keep 13 oz of meat. Spend 2 hrs producing 12 oz of potatoes. Total potato consumption 15 oz + 12 oz = 27 oz. Total consumption: 13 oz of meat and 27 oz of potatoes.

14. ECON202, Maclachlan, Spring 200514 Figure 2a How Trade Expands the Set of Consumption Opportunities

15. ECON202, Maclachlan, Spring 200515 Figure 2b How Trade Expands the Set of Consumption Opportunities

16. Table 2 The Gains from Trade: A Summary Copyright © 2004 South-Western

17. ECON202, Maclachlan, Spring 200517 How to determine comparative advantage Look for that good or service for which the OPPORTUNITY COST is lowest. The opportunity cost is the cost of producing in terms of an alternative good.

18. Table 3 The Opportunity Cost of Meat and Potatoes Copyright © 2004 South-Western