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Econ 101-7/2 . Interdependence and the Gains from Trade (continued). Exercise 1. Here are the PPF for Robinson Crusoe and Friday with 12 hours of labor. Questions. 1. The opportunity cost of 1 pound of fish for Robinson Crusoe and Friday.

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Interdependence and the

Here are the PPF for Robinson Crusoe and Friday with 12 hours of labor.

1. The opportunity cost of 1 pound of fish for Robinson Crusoe and Friday.

2. The opportunity cost of 1 pound of coconut for Robinson Crusoe and Friday

3. Robinson Crusoe has a comparative advantage in __ and Friday has a comparative advantage in__

4. Robinson Crusoe has a comparative advantage in __ and Friday has a comparative advantage in__

1. The opportunity cost of 1 pound of fish for Robinson Crusoe and Friday

• 4 pounds of coconuts, 3/2 pounds of coconuts.

2. The opportunity cost of 1 pound of coconut for Robinson Crusoe and Friday

• 1/4 pound of fish, 2/3 pound of fish.

3. Robinson Crusoe has a comparative advantage in coconuts and Friday has a comparative advantage in fish.

4. Robinson Crusoe has a comparative advantage in coconuts and Friday has a comparative advantage in fish.

• George and Martha face these production possibilities frontiers for brownies and cupcakes.

• a. If George and Martha choose not to trade and divide their time equally between the production of brownies and cupcakes, how many of each would they be able to consume?

• b. Now assume that George and Martha decide to specialize in the good in which they have a comparative advantage and then trade. Who would trade brownies and who would trade cupcakes?

• c. If George and Martha decide to trade 60 brownies for 60 cupcakes, how many cupcakes and brownies would each have to consume?

• d. How do we know each is better off with trade than acting alone?

• a. If George and Martha divide their time equally, George would be able to produce 50 brownies and 100 cupcakes (point A on his PPF) and Martha would be able to produce 80 brownies and 40 cupcakes (point A on her PPF).