Given the information above, please answer the followings (Q1-Q10).

Hours required to produce 1 unit

Country Coffee Bread Labor hours endowed

A 4 2 400

B 8 3 240

1. Which country has an absolute advantage in producing coffee? (Required)(Just answer A or B.)

2.Which country has an absolute advantage in producing bread? (Required)(Just answer A or B.)

3.Which country has a comparative advantage in producing coffee? (Required)(Just answer A or B.)

4. What is an opportunity cost of producing coffee in terms of breadin Country A? (Required)

5. What is the slope of production possibility frontier (PPF) of Country B when coffee is in vertical axis? (Required) (Answer in a fraction, and make a fraction like -1/4)

6. What is the maximum amount of bread Country A can produce? (Required)

7. Write down the equation of the PPF of Country A. (Required)

(Use the notation of C and B for coffee and bread, respectively. Don't leave any space between signs and words.)

8. What is the relative price of coffee (P_c/P_b) in the autarkic equilibrium (without trade) in Country B? (Required)(Answer in a fraction, and make a fraction like 1/4)

9.What is the range of the relative price of coffee (P_c/P_b) in free trade equilibrium inthe world? (Required) (In the range, "=<" means "greater than", and "<=" means less than. So, make your answer like 3=c/P_b<=5. And don't leave any space between signs and words.)

10.What is the relative amount of coffee (Q_c/Q_b) in the free trade equilibrium inthe world? (Required) your answer in a fraction,and make a fraction like 1/4.)